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Seredyuk M, Znovjyak K, Valverde-Muñoz FJ, Muñoz MC, Fritsky IO, Real JA. Rotational order-disorder and spin crossover behaviour in a neutral iron(II) complex based on asymmetrically substituted large planar ionogenic ligand. Dalton Trans 2024. [PMID: 38652019 DOI: 10.1039/d4dt00368c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Octahedrally coordinated spin crossover (SCO) FeII complexes represent an important class of switchable molecular materials. This study presents the synthesis and characterisation of a novel complex, [FeII(ppt-2Fph)2]0·2MeOH, where ppt-2Fph is a new asymmetric ionogenic tridentate planar ligand 2-(5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl)-6-(1H-pyrazol-1-yl)pyridine. The complex exhibits a hysteretic thermally induced SCO transition at 285 K on cooling and at 293 K on heating, as well as light induced excited spin state trapping (LIESST) at lower temperatures with a relaxation T(LIESST) temperature of 73 K. Single crystal analysis in both spin states shows that the compound undergoes an unusual partial (25%) reversible order-disorder of the asymmetrically substituted phenyl group coupled to the thermal SCO. The highly cooperative SCO transition, analysed by structural energy framework analysis at the B3LYP/6-31G(d,p) theory level, revealed the co-existence of stabilising and destabilising energy variations in the lattice. The observed antagonism of intermolecular interactions and synchronous rotational disorder, which contributes to the overall entropy change, is suggested to be at the origin of the cooperative SCO transition.
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Affiliation(s)
- Maksym Seredyuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine.
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain.
- Enamine Ltd., Winston Churchill Str. 78, 02094 Kyiv, Ukraine
| | - Kateryna Znovjyak
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine.
| | - Francisco Javier Valverde-Muñoz
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain.
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022, Valencia, Spain
| | - Igor O Fritsky
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine.
| | - José Antonio Real
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain.
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2
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Gavara-Edo M, Valverde-Muñoz FJ, Muñoz MC, Elidrissi Moubtassim S, Marques-Moros F, Herrero-Martín J, Znovjyak K, Seredyuk M, Real JA, Coronado E. Design and Processing as Ultrathin Films of a Sublimable Iron(II) Spin Crossover Material Exhibiting Efficient and Fast Light-Induced Spin Transition. Chem Mater 2023; 35:9591-9602. [PMID: 38047182 PMCID: PMC10687866 DOI: 10.1021/acs.chemmater.3c01704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 12/05/2023]
Abstract
Materials based on spin crossover (SCO) molecules have centered the attention in molecular magnetism for more than 40 years as they provide unique examples of multifunctional and stimuli-responsive materials, which can be then integrated into electronic devices to exploit their molecular bistability. This process often requires the preparation of thermally stable SCO molecules that can sublime and remain intact in contact with surfaces. However, the number of robust sublimable SCO molecules is still very scarce. Here, we report a novel example of this kind. It is based on a neutral iron(II) coordination complex formulated as [Fe(neoim)2], where neoimH is the ionogenic ligand 2-(1H-imidazol-2-yl)-9-methyl-1,10-phenanthroline. In the first part, a comprehensive study, which covers the synthesis and magnetostructural characterization of the [Fe(neoim)2] complex as a bulk microcrystalline material, is reported. Then, in the second part, we investigate the suitability of this material to form thin films through high-vacuum sublimation. Finally, the retainment of all present SCO capabilities in the bulk when the material is processed is thoroughly studied by means of X-ray absorption spectroscopy. In particular, a very efficient and fast light-induced spin transition (LIESST effect) has been observed, even for ultrathin films of 15 nm.
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Affiliation(s)
- Miguel Gavara-Edo
- Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna 46980, Spain
| | | | - M. Carmen Muñoz
- Departamento
de Fisica Aplicada, Universitat Politècnica
de València, Camino de Vera s/n, Valencia 46022, Spain
| | - Safaa Elidrissi Moubtassim
- Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna 46980, Spain
| | - Francisco Marques-Moros
- Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna 46980, Spain
| | | | - Kateryna Znovjyak
- Department
of Chemistry, Taras Shevchenko National
University of Kyiv, 64/13,
Volodymyrska Street, Kyiv 01601, Ukraine
| | - Maksym Seredyuk
- Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna 46980, Spain
- Department
of Chemistry, Taras Shevchenko National
University of Kyiv, 64/13,
Volodymyrska Street, Kyiv 01601, Ukraine
| | - José Antonio Real
- Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna 46980, Spain
| | - Eugenio Coronado
- Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna 46980, Spain
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3
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Orellana-Silla A, Meneses-Sánchez M, Turo-Cortés R, Muñoz MC, Bartual-Murgui C, Real JA. Symmetry Breaking and Cooperative Spin Crossover in a Hofmann-Type Coordination Polymer Based on Negatively Charged {Fe II(μ 2-[M II(CN) 4]) 2} n2n- Layers (M II = Pd, Pt). Inorg Chem 2023; 62:12783-12792. [PMID: 37526289 PMCID: PMC10428219 DOI: 10.1021/acs.inorgchem.3c01332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Indexed: 08/02/2023]
Abstract
We report herein the synthesis and characterization of two unprecedented isomorphous spin-crossover two-dimensional coordination polymers of the Hofmann-type formulated {FeII(Hdpyan)2(μ2-[MII(CN)4])2}, with MII = Pd, Pt and Hdpyan is the in situ partially protonated form of 2,5-(dipyridin-4-yl)aniline (dpyan). The FeII is axially coordinated by the pyridine ring attached to the 2-position of the aniline ring, while it is equatorially surrounded by four [MII(CN)4]2- planar groups acting as trans μ2-bidentate ligands defining layers, which stack parallel to each other. The other pyridine group of Hdpyan, being protonated, remains peripheral but involved in a strong [MII-C≡N···Hpy+] hydrogen bond between alternate layers. This provokes a nearly 90° rotation of the plane defined by the [MII(CN)4]2- groups, with respect to the average plane defined by the layers, forcing the observed uncommon bridging mode and the accumulation of negative charge around each FeII, which is compensated by the axial [Hdpyan]+ ligands. According to the magnetic and calorimetric data, both compounds undergo a strong cooperative spin transition featuring a 10-12 K wide hysteresis loop centered at 220 (Pt) and 211 K (Pd) accompanied by large entropy variations, 97.4 (Pt) and 102.9 (Pd) J/K mol. The breaking symmetry involving almost 90° rotation of one of the two coordinated pyridines together with the large unit-cell volume change per FeII (ca. 50 Å3), and subsequent release of significantly short interlayer contacts upon the low-spin → high-spin event, accounts for the strong cooperativity.
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Affiliation(s)
- Alejandro Orellana-Silla
- Departamento
de Química Inorgánica, Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Paterna, 46980 Valencia, Spain
| | - Manuel Meneses-Sánchez
- Departamento
de Química Inorgánica, Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Paterna, 46980 Valencia, Spain
| | - Rubén Turo-Cortés
- Departamento
de Química Inorgánica, Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Paterna, 46980 Valencia, Spain
| | - M. Carmen Muñoz
- Departamento
de Fisica Aplicada, Universitat Politècnica
de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Carlos Bartual-Murgui
- Departamento
de Química Inorgánica, Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Paterna, 46980 Valencia, Spain
| | - José Antonio Real
- Departamento
de Química Inorgánica, Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Paterna, 46980 Valencia, Spain
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4
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Rubín de Célix C, Martín-de-Carpi J, Pujol-Muncunill G, Palomino LM, Velasco Rodríguez-Belvís M, Martín-Masot R, Navas-López VM, Ricart E, Casanova MJ, Rodríguez-Martínez A, Leo-Carnerero E, Alcaraz A, Mañosa M, Hernández V, Cobelas Cobelas MC, Sánchez C, Menchén L, Mesonero F, Barreiro-De Acosta M, Martinón-Torres N, Tejido Sandoval C, Rendo Vázquez A, Corsino P, Vicente R, Hernández-Camba A, Alberto Alonso JR, Alonso-Abreu I, Castro Millán AM, Peries Reverter L, Castro B, Fernández-Salgado E, Busto Cuiñas MM, Benítez JM, Madero L, Clemente F, Riestra S, Jiménez-Treviño S, Boscá-Watts M, Crehuá-Gaudiza E, Calvo Moya M, Huguet JM, Largo-Blanco EM, González Vives L, Plaza R, Guerra I, Barrio J, Escartín L, Alfambra E, Cruz N, Muñoz MC, Muñoz Pino MG, Van Domselaar M, Botella B, Monfort Miquel D, Rodríguez Grau MC, De La Mano A, Ber Y, Calvo Iñiguez M, Martínez-Pérez TDJ, Chaparro M, Gisbert JP. Benefits of Paediatric to Adult Transition Programme in Inflammatory Bowel Disease: The BUTTERFLY Study of GETECCU and SEGHNP. J Clin Med 2023; 12:4813. [PMID: 37510928 PMCID: PMC10381381 DOI: 10.3390/jcm12144813] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
(1) Background: Transition is a planned movement of paediatric patients to adult healthcare systems, and its implementation is not yet established in all inflammatory bowel disease (IBD) units. The aim of the study was to evaluate the impact of transition on IBD outcomes. (2) Methods: Multicentre, retrospective and observational study of IBD paediatric patients transferred to an adult IBD unit between 2017-2020. Two groups were compared: transition (≥1 joint visit involving the gastroenterologist, the paediatrician, a programme coordinator, the parents and the patient) and no-transition. Outcomes within one year after transfer were analysed. The main variable was poor clinical outcome (IBD flare, hospitalisation, surgery or any change in the treatment because of a flare). Predictive factors of poor clinical outcome were identified with multivariable analysis. (3) Results: A total of 278 patients from 34 Spanish hospitals were included. One hundred eighty-five patients (67%) from twenty-two hospitals (65%) performed a structured transition. Eighty-nine patients had poor clinical outcome at one year after transfer: 27% in the transition and 43% in the no-transition group (p = 0.005). One year after transfer, no-transition patients were more likely to have a flare (36% vs. 22%; p = 0.018) and reported more hospitalisations (10% vs. 3%; p = 0.025). The lack of transition, as well as parameters at transfer, including IBD activity, body mass index < 18.5 and corticosteroid treatment, were associated with poor clinical outcome. One patient in the transition group (0.4%) was lost to follow-up. (4) Conclusion: Transition care programmes improve patients' outcomes after the transfer from paediatric to adult IBD units. Active IBD at transfer impairs outcomes.
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Affiliation(s)
- Cristina Rubín de Célix
- Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - Javier Martín-de-Carpi
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Hospital Sant Joan de Déu, 08950 Barcelona, Spain
| | - Gemma Pujol-Muncunill
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Hospital Sant Joan de Déu, 08950 Barcelona, Spain
| | - Laura María Palomino
- Paediatric Gastroenterology and Nutrition Department, Hospital Infantil Universitario Niño Jesús, 28009 Madrid, Spain
| | | | - Rafael Martín-Masot
- Paediatric Gastroenterology and Nutrition Unit, Hospital Regional Universitario de Málaga, Biomedical Re-search Institute of Málaga (IBIMA), 29010 Málaga, Spain
| | - Víctor Manuel Navas-López
- Paediatric Gastroenterology and Nutrition Unit, Hospital Regional Universitario de Málaga, Biomedical Re-search Institute of Málaga (IBIMA), 29010 Málaga, Spain
| | - Elena Ricart
- Gastroenterology Department, Hospital Clínic, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Institut d'Investigacions Biomèdiques Agustí Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - María José Casanova
- Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - Alejandro Rodríguez-Martínez
- Paediatric Gastroenterology, Hepatology and Nutrition, UGC de Pediatría, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain
| | | | - Alba Alcaraz
- Department of Paediatric Gastroenterology, Nutrition and Hepatology, University Hospital Germans Trias I Pujol, 08916 Badalona, Spain
| | - Miriam Mañosa
- Gastroenterology Department, Hospital Universitari Germans Trias I Pujol, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 08916 Badalona, Spain
| | - Vicent Hernández
- Department of Gastroenterology, Xerencia Xestion Integrada de Vigo, SERGAS, Research Group in Digestive Diseases, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain
| | | | - César Sánchez
- Paediatric Gastroenterology, Hepatology and Nutrition Department, Hospital General Universitario Gregorio Marañón, 28018 Madrid, Spain
| | - Luis Menchén
- Gastroenterology Department-CEIMI, Hospital General Universitario Gregorio Marañón, Departamento de Medicina, Universidad Complutense de Madrid, 28018 Madrid, Spain
| | - Francisco Mesonero
- Gastroenterology Department, Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - Manuel Barreiro-De Acosta
- Gastroenterology Department, Hospital Universitario Clínico de Santiago, 15706 Santiago de Compostela, Spain
| | - Nazareth Martinón-Torres
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Clínico de Santiago, 15706 Santiago de Compostela, Spain
| | - Coral Tejido Sandoval
- Gastroenterology Department, Complejo Hospitalario Universitario de Ourense, 32005 Orense, Spain
| | - Alicia Rendo Vázquez
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Complejo Hospitalario Universitario de Ourense, 32005 Orense, Spain
| | - Pilar Corsino
- Inflammatory Bowel Disease Unit, Gastroenterology Department, Hospital Universitario Miguel Servet, Health Research Institute of Aragón, 50009 Zaragoza, Spain
| | - Raquel Vicente
- Inflammatory Bowel Disease Unit, Gastroenterology Department, Hospital Universitario Miguel Servet, Health Research Institute of Aragón, 50009 Zaragoza, Spain
| | - Alejandro Hernández-Camba
- Gastroenterology Department, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain
| | - José Ramón Alberto Alonso
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain
| | - I Alonso-Abreu
- Gastroenterology Department, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Spain
| | - Ana María Castro Millán
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Spain
| | - Laia Peries Reverter
- Gastroenterology Department, Hospital Universitari de Girona Doctor Josep Trueta, 17007 Girona, Spain
| | - Beatriz Castro
- Gastroenterology Department, Hospital Universitario Marqués de Valdecilla, 39008 Santander, Spain
| | - Estela Fernández-Salgado
- Gastroenterology Department, Complejo Hospitalario Universitario de Pontevedra, 36071 Pontevedra, Spain
| | - M Mercedes Busto Cuiñas
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Complejo Hospitalario Universitario de Pontevedra, 36071 Pontevedra, Spain
| | - José Manuel Benítez
- Gastroenterology Department, Hospital Universitario Reina Sofía, IMIBIC, 14004 Córdoba, Spain
| | - Lucía Madero
- Gastroenterology Department, Hospital Universitario de Alicante, Instituto de Investigación Sanitaria y Biomedica (ISABIAL), 03010 Alicante, Spain
| | - Fernando Clemente
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario de Alicante, 03010 Alicante, Spain
| | - Sabino Riestra
- Gastroenterology Department, Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Santiago Jiménez-Treviño
- Paediatric Gastroenterology and Nutrition Unit, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Maia Boscá-Watts
- Gastroenterology Department, Hospital Clínico de Valencia, 46010 Valencia, Spain
| | - Elena Crehuá-Gaudiza
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Clínico de Valencia, 46010 Valencia, Spain
| | - Marta Calvo Moya
- Inflammatory Bowel Disease Unit, Department of Gastroenterology and Hepatology, Hospital Puerta de Hierro, 28222 Madrid, Spain
| | - José María Huguet
- Gastroenterology Department, Consorcio Hospital General Universitario de Valencia, 46014 Valencia, Spain
| | - Ester-María Largo-Blanco
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Consorcio Hospital General Universitario de Valencia, 46014 Valencia, Spain
| | - Leticia González Vives
- Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain
| | - Rocío Plaza
- Gastroenterology Department, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain
| | - Iván Guerra
- Gastroenterology Department, Hospital Universitario de Fuenlabrada, 28942 Madrid, Spain
| | - Josefa Barrio
- Paediatric Gastroenterology Unit, Hospital Universitario de Fuenlabrada, 28942 Madrid, Spain
| | - Laura Escartín
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Clínico Universitario Lozano Blesa, 50009 Zaragoza, Spain
| | - Erika Alfambra
- Gastroenterology Department, Hospital Clínico Universitario Lozano Blesa, 50009 Zaragoza, Spain
| | - Noelia Cruz
- Gastroenterology Department, Hospital Doctor José Molina Orosa, 35500 Las Palmas, Spain
| | - M Carmen Muñoz
- Gastroenterology Department, Hospital Universitario de Basurto, 48013 Bilbao, Spain
| | | | | | - Belén Botella
- Gastroenterology Department, Hospital Universitario Infanta Cristina, 28981 Madrid, Spain
| | - David Monfort Miquel
- Gastroenterology Department, Centro Consorci Sanitari Terrassa, 08227 Terrassa, Spain
| | | | - Agustín De La Mano
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital de Henares, 28822 Madrid, Spain
| | - Yolanda Ber
- Gastroenterology Department, Hospital de San Jorge, 22004 Huesca, Spain
| | | | | | - María Chaparro
- Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
| | - Javier P Gisbert
- Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
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5
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Seredyuk M, Znovjyak K, Valverde-Muñoz FJ, Muñoz MC, Amirkhanov VM, Fritsky IO, Real JA. Order-Disorder, Symmetry Breaking, and Crystallographic Phase Transition in a Series of Bis( trans-thiocyanate)iron(II) Spin Crossover Complexes Based on Tetradentate Ligands Containing 1,2,3-Triazoles. Inorg Chem 2023. [PMID: 37227233 DOI: 10.1021/acs.inorgchem.3c00830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report herein a series of neutral trans-thiocyanate mononuclear spin crossover (SCO) complexes, [FeIIL(NCS)2] (1-4), based on tetradentate ligands L obtained by reaction of N-substituted 1,2,3-triazolecarbaldehyde with 1,3-propanediamine or 2,2-dimethyl-1,3-diaminopropane [L = N1,N3-bis((1,5-dimethyl-1H-1,2,3-triazol-4-yl)methylene)propane-1,3-diamine/-2,2-dimethylpropane-1,3-diamine, 1/2 and N1,N3-bis((1-ethyl/1-propyl-1H-1,2,3-triazol-4-yl)methylene)-2,2-dimethylpropane-1,3-diamine, 3/4]. The thermal-induced SCO behavior is characterized by abrupt transitions with an average critical temperature (ΔT1/2)/hysteresis loop width (ΔThyst) in the range 190-252/5-14 K, while the photo-generated metastable high-spin (HS) phases are characterized by TLIESST temperatures in the range 44-59 K. Single crystal analysis shows that except 1, all compounds experience reversible symmetry breaking coupled with the thermal SCO. Furthermore, 4 experiences an additional phase transition at ca. 290 K responsible for the coexistence of two HS phases quenched at 10 K through LIESST and TIESST effects. The molecules form hexagonally packed arrays sustained by numerous weak CH···S and C···C/S···C/N···C bonds involving polar coordination cores, while non-polar pendant aliphatic substituents are segregated inside, occupying hexagonal channels. Energy framework analysis of complexes with one step SCO transition (1, 2, and 4) shows a correlation between the cooperativity and the amplitude of changes in the molecule-molecule interactions in the lattice at the SCO transition.
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Affiliation(s)
- Maksym Seredyuk
- Instituto de Ciencia Molecular (ICMol)/Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Kateryna Znovjyak
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Francisco Javier Valverde-Muñoz
- Instituto de Ciencia Molecular (ICMol)/Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | - M Carmen Muñoz
- Departamento de Fisica Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Volodymyr M Amirkhanov
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Igor O Fritsky
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol)/Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
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6
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Sanz-Marco A, Esperilla D, Montesinos-Magraner M, Vila C, Muñoz MC, Pedro JR, Blay G. A Cu-BOX catalysed enantioselective Mukaiyama-aldol reaction with difluorinated silyl enol ethers and acylpyridine N-oxides. Org Biomol Chem 2023; 21:345-350. [PMID: 36484719 DOI: 10.1039/d2ob01763f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A Cu(II)/BOX complex catalyses the enantioselective addition of difluorinated silyl enol ethers to acylpyridine N-oxides. The reaction provides difluorinated chiral tertiary alcohols of great interest in medicinal chemistry. These compounds are obtained in moderate to excellent yields and with high enantioselectivities. The stereochemical outcome of the reaction has been explained by DFT calculations.
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Affiliation(s)
- Amparo Sanz-Marco
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Daniel Esperilla
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Marc Montesinos-Magraner
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Carlos Vila
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - M Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, C/Cami de Vera s/n, 46022-València, Spain
| | - José R Pedro
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - Gonzalo Blay
- Departament de Química Orgànica-Facultat de Química, Universitat de València, C/Dr. Moliner 50, 46100-Burjassot, València, Spain.
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7
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Seredyuk M, Znovjyak K, Valverde-Muñoz FJ, da Silva I, Muñoz MC, Moroz YS, Real JA. 105 K Wide Room Temperature Spin Transition Memory Due to a Supramolecular Latch Mechanism. J Am Chem Soc 2022; 144:14297-14309. [PMID: 35900921 PMCID: PMC9380689 DOI: 10.1021/jacs.2c05417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
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Little is known about the mechanisms behind the bistability
(memory)
of molecular spin transition compounds over broad temperature ranges
(>100 K). To address this point, we report on a new discrete FeII neutral complex [FeIIL2]0 (1) based on a novel asymmetric tridentate ligand 2-(5-(3-methoxy-4H-1,2,4-triazol-3-yl)-6-(1H-pyrazol-1-yl))pyridine
(L). Due to the asymmetric cone-shaped form, in the lattice, the formed
complex molecules stack into a one-dimensional (1D) supramolecular
chain. In the case of the rectangular supramolecular arrangement of
chains in methanolates 1-A and 1-B (both
orthorhombic, Pbcn) differing, respectively, by bent
and extended spatial conformations of the 3-methoxy groups (3MeO),
a moderate cooperativity is observed. In contrast, the hexagonal-like
arrangement of supramolecular chains in polymorph 1-C (monoclinic, P21/c) results in steric coupling of the transforming complex
species with the peripheral flipping 3MeO group. The group acts as
a supramolecular latch, locking the huge geometric distortion of complex 1 and in turn the trigonal distortion of the central FeII ion in the high-spin state, thereby keeping it from the
transition to the low-spin state over a large thermal range. Analysis
of the crystal packing of 1-C reveals significantly changing
patterns of close intermolecular interactions on going between the
phases substantiated by the energy framework analysis. The detected
supramolecular mechanism leads to a record-setting robust 105 K wide
hysteresis spanning the room temperature region and an atypically
large TLIESST relaxation value of 104
K of the photoexcited high-spin state. This work highlights a viable
pathway toward a new generation of cleverly designed molecular memory
materials.
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Affiliation(s)
- Maksym Seredyuk
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain.,Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Kateryna Znovjyak
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | | | - Ivan da Silva
- ISIS Neutron Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, U.K
| | - M Carmen Muñoz
- Departamento de Fisíca Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Yurii S Moroz
- Chemspace Ltd., Chervonotkatska Street 78, 02094 Kyiv, Ukraine.,ChemBio Center, Taras Shevchenko National University of Kyiv, 60, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - José Antonio Real
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
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8
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Carceller-Ferrer L, González Del Campo A, Vila C, Blay G, Muñoz MC, Pedro JR. Catalytic Diastereo- and Enantioselective Synthesis of Tertiary Trifluoromethyl Carbinols through a Vinylogous Aldol Reaction of Alkylidenepyrazolones with Trifluoromethyl Ketones. J Org Chem 2022; 87:4538-4549. [PMID: 35293756 PMCID: PMC8981347 DOI: 10.1021/acs.joc.1c02817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A diastereo- and enantioselective organocatalytic aldol reaction between alkylidenepyrazolones and trifluoromethyl ketones leading to chiral tertiary alcohols bearing a trifluoromethyl group is presented. The methodology is based on the use of a bifunctional organocatalyst in order to activate the γ-hydrogen atoms of the alkylidenepyrazolone nucleophile and the carbonyl group of the trifluoromethylarylketone providing highly functionalized trifluoromethyl alcohols with moderate yields, excellent diastereoselectivity, and moderate to good enantioselectivity. Experiments monitoring the conversion by 1H NMR and the enantiomeric excess by HPLC with the reaction time showed that full conversion of the starting materials is not achieved and that the enantiomeric excess decreases upon extended times, probably due to the reversibility of the reaction.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Aleix González Del Campo
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
| | - José R Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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9
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Laviós A, Sanz-Marco A, Vila C, Muñoz MC, Pedro JR, Blay G. Metal-Free Diastereo- and Enantioselective Dearomative Formal [3 + 2] Cycloaddition of 2-Nitrobenzofurans and Isocyanoacetate Esters. Org Lett 2022; 24:2149-2154. [PMID: 35293212 PMCID: PMC8961877 DOI: 10.1021/acs.orglett.2c00427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The diastereo- and
enantioselective dearomative formal [3 + 2]
cycloaddition of 2-nitrobenzofurans and α-aryl-α-isocyanoacetate
esters provides tricyclic compounds bearing the 3a,8b-dihydro-1H-benzofuro[2,3-c]pyrrole framework with three consecutive stereogenic centers.
The reaction was enabled by a cupreine-ether organocatalyst. The reaction
products were obtained with almost full diastereoselectivity and with
excellent enantiomeric excesses for a number of substituted 2-nitrobenzofurans
and isocyanoacetates.
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Affiliation(s)
- Adrian Laviós
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, Camí de Vera S/N, 46022 València, Spain
| | - José R Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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10
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Orellana-Silla A, Valverde-Muñoz FJ, Muñoz MC, Bartual-Murgui C, Ferrer S, Real JA. Halobenzene Clathrates of the Porous Metal-Organic Spin-Crossover Framework [Fe(tvp) 2(NCS) 2] n. Stabilization of a Four-Step Transition. Inorg Chem 2022; 61:4484-4493. [PMID: 35235314 PMCID: PMC8924922 DOI: 10.1021/acs.inorgchem.2c00014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Here we show that
the porous metal–organic spin crossover
(SCO) framework [Fe(tvp)2(NCS)2]@4(CH3CN·H2O) [1@4(CH3CN·H2O)] is
an excellent precursor material for the systematic synthesis, via
single-crystal to single-crystal transformation, of a series of halobenzene
clathrates. Immersion of samples constituted of single crystals of 1@4(CH3CN·H2O) in the liquid halobenzenes PhXn, X = F (n = 1–6),
X = Cl (n = 1, 2), and X = Br (n = 1) at room temperature induces complete replacement of the guest
molecules by PhXn to afford 1@2PhXn. Single-crystal analyses
of the new clathrates confirm the integrity of the porous framework
with the PhXn guests being organized by
pairs via π-stacking filling the nanochannels. The magnetic
and calorimetric data confirm the occurrence of practically complete
SCO behavior in all of the clathrates. The characteristic SCO equilibrium
temperatures, T1/2, seem to be the result
of a subtle balance in the host–guest interactions, which are
temperature- and spin-state-dependent. The radically distinct supramolecular
organization of the PhCl2 guests in 1@2PhCl2 affords a rare example of four-step SCO
behavior following the sequence [HS1:LS0] ↔
[HS2/3:LS1/3] ↔ [HS1/2:LS1/2] ↔ [HS1/4:LS3/4] ↔ [HS0:LS1], which
has been structurally characterized. Guest exchange
via single-crystal to single-crystal transformation
has been revealed to be an excellent approach to systematically stow
halobenzene molecules in the nanochannels of the porous spin-crossover
(SCO) metal−organic framework [FeII(tvp)2(NCS)2]n. This has enabled
the unveiling of key structural factors leading to a four-step SCO
behavior.
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Affiliation(s)
- Alejandro Orellana-Silla
- Instituto de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | | | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Carlos Bartual-Murgui
- Instituto de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | - Sacramento Ferrer
- Departamento de Química Inorgánica, Universidad de Valencia, 46100 Burjassot, Valencia,Spain
| | - José Antonio Real
- Instituto de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
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11
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Seredyuk M, Znovjyak K, Valverde-Muñoz FJ, Muñoz MC, Fritsky IO, Amirkhanov VM, Real JA. Spin transition and symmetry-breaking in new mononuclear FeII tren-complexes with up to 38 K hysteresis around room temperature. Inorg Chem Front 2022. [DOI: 10.1039/d1qi00941a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New FeII complexes based on the well-known tripodand ligand type undergo abrupt hysteretic spin transition due to the symmetry-breaking in the room temperature region.
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Affiliation(s)
- Maksym Seredyuk
- Departament de Quimica Inorgànica, Institut de Ciencia Molecular (ICMol), Universitat de València, Valencia, Spain
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | - Kateryna Znovjyak
- Departament de Quimica Inorgànica, Institut de Ciencia Molecular (ICMol), Universitat de València, Valencia, Spain
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | | | - M. Carmen Muñoz
- Departamento de Fisica Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
| | - Igor O. Fritsky
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | - Volodymyr M. Amirkhanov
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | - Jose A. Real
- Departament de Quimica Inorgànica, Institut de Ciencia Molecular (ICMol), Universitat de València, Valencia, Spain
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12
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Orellana-Silla A, Turo-Cortés R, Rubio-Giménez V, Bartual-Murgui C, Ameloot R, Martí-Gastaldo C, Muñoz MC, Real Cabezos JAA. Broad-range spin-crossover modulation in guest-responsive 2D Hofmann-type coordination polymers. Inorg Chem Front 2022. [DOI: 10.1039/d2qi02252d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Rationalizing the role of chemical functionalisation on the synergy between spin crossover (SCO) and guest adsorption properties in porous FeII coordination polymers is a central topic within the switchable materials...
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13
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Sheikhi E, Rezaei N, Castilla A, Sanz‐Marco A, Vila C, Muñoz MC, Pedro JR, Blay G. Enantioselective Addition of Sodium Bisulfite to Nitroalkenes. A Convenient Approach to Chiral Sulfonic Acids. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ehsan Sheikhi
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
| | - Narjes Rezaei
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
| | - Alvaro Castilla
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
| | - Amparo Sanz‐Marco
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada Universitat Politècnica de València C/ Cami de Vera s/n 46022 -València Spain
| | - José R. Pedro
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 -Burjassot (València) Spain
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14
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Carceller-Ferrer L, Vila C, Blay G, Muñoz MC, Pedro JR. Catalytic Diastereo- and Enantioselective Vinylogous Mannich Reaction of Alkylidenepyrazolones to Isatin-Derived Ketimines. Org Lett 2021; 23:7391-7395. [PMID: 34553948 PMCID: PMC8491163 DOI: 10.1021/acs.orglett.1c02571] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
![]()
A valuable organocatalytic
vinylogous Mannich reaction between
alkylidenepyrazolones and isatin-derived ketimines has been successfully
established. Squaramide organocatalyst, prepared from quinine, catalyzed
the diastereo- and enantioselective vinylogous Mannich addition, affording
a range of aminooxindole-pyrazolone adducts (24 examples) with excellent
outcomes: up to 98% yield with complete diastereoselectivity and excellent
enantioselectivity (up to 99% ee). Additionally, different synthetic
transformations were performed with the chiral pyrazolone-oxindole
adducts.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
| | - José R Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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15
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Meneses-Sánchez M, Turo-Cortés R, Bartual-Murgui C, da Silva I, Muñoz MC, Real JA. Enhanced Interplay between Host-Guest and Spin-Crossover Properties through the Introduction of an N Heteroatom in 2D Hofmann Clathrates. Inorg Chem 2021; 60:11866-11877. [PMID: 34347471 PMCID: PMC9490864 DOI: 10.1021/acs.inorgchem.1c01925] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Controlled
modulation of the spin-crossover (SCO) behavior through
the sorption–desorption of invited molecules is an extensively
exploited topic because of its potential applications in molecular
sensing. For this purpose, understanding the mechanisms by which the
spin-switching properties are altered by guest molecules is of paramount
importance. Here, we show an experimental approach revealing a direct
probe of how the interplay between SCO and host–guest chemistry
is noticeably activated by chemically tuning the host structure. Thus,
the axial ligand 4-phenylpyridine (4-PhPy) in the 2D Hofmann clathrates
{Fe(4-PhPy)2[M(CN)4]} (PhPyM; M
= Pt, Pd) is replaced by 2,4-bipyridine (2,4-Bipy), resulting in the
isomorphous compounds {Fe(2,4-Bipy)2[M(CN)4]}
(BipyM; M = Pt, Pd), which basically differ from the
former in that they have a noncoordinated N heteroatom in the ancillary
aromatic substituent, i.e., 2-pyridyl instead of phenyl. Our chemical,
magnetic, calorimetric, and structural characterizations demonstrate
that this subtle chemical composition change provokes outstanding
modifications not only in the capability to adsorb small guests as
water or methanol but also in the extent to which these guests affect
the SCO characteristics. The introduction
of an N-heterocyclic atom in the aromatic
interdigitated axial ligands of a 2D Hofmann-type framework provokes
dramatic changes on its affinity to solvent guests. Sorption−desorption
of these guests induces drastic structural changes, affecting dramatically
the hysteretic spin-crossover properties of the framework.
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Affiliation(s)
- Manuel Meneses-Sánchez
- Instituto de Ciencia Molecular and Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez 2, Paterna, València E-46980, Spain
| | - Rubén Turo-Cortés
- Instituto de Ciencia Molecular and Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez 2, Paterna, València E-46980, Spain
| | - Carlos Bartual-Murgui
- Instituto de Ciencia Molecular and Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez 2, Paterna, València E-46980, Spain
| | - Iván da Silva
- ISIS Neutron Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, U.K
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera S/N, Valencia 46022, Spain
| | - José Antonio Real
- Instituto de Ciencia Molecular and Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez 2, Paterna, València E-46980, Spain
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16
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Cao T, Valverde-Muñoz FJ, Duan X, Zhang M, Wang P, Xing L, Sun F, Zhou Z, Liu H, Jiang J, Muñoz MC, Real JA, Zhang D. Spin Crossover in a Series of Non-Hofmann-Type Fe(II) Coordination Polymers Based on [Hg(SeCN) 3] - or [Hg(SeCN) 4] 2- Building Blocks. Inorg Chem 2021; 60:11048-11057. [PMID: 34279097 DOI: 10.1021/acs.inorgchem.1c00802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Self-assembly of [Hg(SeCN)4]2- tetrahedral building blocks, iron(II) ions, and a series of bis-monodentate pyridyl-type bridging ligands has afforded the new heterobimetallic HgII-FeII coordination polymers {Fe[Hg(SeCN)3]2(4,4'-bipy)2}n (1), {Fe[Hg(SeCN)4](tvp)}n (2), {Fe[Hg(SeCN)3]2(4,4'-azpy)2}n (3), {Fe[Hg(SeCN)4](4,4'-azpy)(MeOH)}n (4), {Fe[Hg(SeCN)4](3,3'-bipy)}n (5) and {Fe[Hg(SeCN)4](3,3'-azpy)}n (6) (4,4-bipy = 4,4'-bipyridine, tvp = trans-1,2-bis(4-pyridyl)ethylene, 4,4'-azpy = 4,4'-azobispyridine, 3,3-bipy = 3,3'-bipyridine, 3,3'-azpy = 3,3'-azobispyridine). Single-crystal X-ray analyses show that compounds 1 and 3 display a two-dimensional robust sheet structure made up of infinite linear [(FeL)n]2n+ (L = 4,4'-bipy or 4,4'-azpy) chains linked by in situ formed {[Hg(L)(SeCN)3]2}2- anionic dimeric bridges. Complexes 2 and 4-6 define three-dimensional networks with different topological structures, indicating, in combination with complexes 1 and 3, that the polarity, length, rigidity, and conformation of the bridging organic ligand play important roles in the structural nature of the products reported here. The magnetic properties of complexes 1 and 2 show the occurrence of temperature- and light-induced spin crossover (SCO) properties, while complexes 4-6 are in the high-spin state at all temperatures. The current results provide a new route for the design and synthesis of new SCO functional materials with non-Hofmann-type traditional structures.
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Affiliation(s)
- Tong Cao
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Francisco Javier Valverde-Muñoz
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
| | - Xiaoyi Duan
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Mingjian Zhang
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Ping Wang
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Lingbao Xing
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Fenggang Sun
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Zhen Zhou
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Hui Liu
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Jianzhuang Jiang
- Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
| | - Daopeng Zhang
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
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17
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Turo-Cortés R, Valverde-Muñoz FJ, Meneses-Sánchez M, Muñoz MC, Bartual-Murgui C, Real JA. Bistable Hofmann-Type Fe II Spin-Crossover Two-Dimensional Polymers of 4-Alkyldisulfanylpyridine for Prospective Grafting of Monolayers on Metallic Surfaces. Inorg Chem 2021; 60:9040-9049. [PMID: 34047556 PMCID: PMC9129067 DOI: 10.1021/acs.inorgchem.1c01010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 12/02/2022]
Abstract
Aiming at investigating the suitability of Hofmann-type two-dimensional (2D) coordination polymers {FeII(Lax)2[MII(CN)4]} to be processed as single monolayers and probed as spin crossover (SCO) junctions in spintronic devices, the synthesis and characterization of the MII derivatives (MII = Pd and Pt) with sulfur-rich axial ligands (Lax = 4-methyl- and 4-ethyl-disulfanylpyridine) have been conducted. The thermal dependence of the magnetic and calorimetric properties confirmed the occurrence of strong cooperative SCO behavior in the temperature interval of 100-225 K, featuring hysteresis loops 44 and 32.5 K/21 K wide for PtII-methyl and PtII/PdII-ethyl derivatives, while the PdII-methyl derivative undergoes a much less cooperative multistep SCO. Excluding PtII-methyl, the remaining compounds display light-induced excited spin-state trapping at 10 K with TLIESST temperatures in the range of 50-70 K. Single-crystal studies performed in the temperature interval 100-250 K confirmed the layered structure and the occurrence of complete transformation between the high- and low-spin states of the FeII center for the four compounds. Strong positional disorder seems to be the source of elastic frustration driving the multistep SCO observed for the PdII-methyl derivative. It is expected that the peripheral disulfanyl groups will favor anchoring and growing of the monolayer on gold substrates and optimal electron transport in the device.
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Affiliation(s)
- Rubén Turo-Cortés
- Instituto
de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez
2, 46980 Paterna, Valencia Spain
| | - Francisco Javier Valverde-Muñoz
- Instituto
de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez
2, 46980 Paterna, Valencia Spain
| | - Manuel Meneses-Sánchez
- Instituto
de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez
2, 46980 Paterna, Valencia Spain
| | - M. Carmen Muñoz
- Departamento
de Física Aplicada, Universitat Politècnica
de València, Camino
de Vera S/N 46022 Valencia, Spain
| | - Carlos Bartual-Murgui
- Instituto
de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez
2, 46980 Paterna, Valencia Spain
| | - José Antonio Real
- Instituto
de Ciencia Molecular/Departamento de Química Inorgánica, Universidad de Valencia, Catedrático Beltrán Martínez
2, 46980 Paterna, Valencia Spain
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18
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Hernandez-Martin D, Gallego F, Tornos J, Rouco V, Beltran JI, Munuera C, Sanchez-Manzano D, Cabero M, Cuellar F, Arias D, Sanchez-Santolino G, Mompean FJ, Garcia-Hernandez M, Rivera-Calzada A, Pennycook SJ, Varela M, Muñoz MC, Sefrioui Z, Leon C, Santamaria J. Controlled Sign Reversal of Electroresistance in Oxide Tunnel Junctions by Electrochemical-Ferroelectric Coupling. Phys Rev Lett 2020; 125:266802. [PMID: 33449729 DOI: 10.1103/physrevlett.125.266802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
The persistence of ferroelectricity in ultrathin layers relies critically on screening or compensation of polarization charges which otherwise destabilize the ferroelectric state. At surfaces, charged defects play a crucial role in the screening mechanism triggering novel mixed electrochemical-ferroelectric states. At interfaces, however, the coupling between ferroelectric and electrochemical states has remained unexplored. Here, we make use of the dynamic formation of the oxygen vacancy profile in the nanometer-thick barrier of a ferroelectric tunnel junction to demonstrate the interplay between electrochemical and ferroelectric degrees of freedom at an oxide interface. We fabricate ferroelectric tunnel junctions with a La_{0.7}Sr_{0.3}MnO_{3} bottom electrode and BaTiO_{3} ferroelectric barrier. We use poling strategies to promote the generation and transport of oxygen vacancies at the metallic top electrode. Generated oxygen vacancies control the stability of the ferroelectric polarization and modify its coercive fields. The ferroelectric polarization, in turn, controls the ionization of oxygen vacancies well above the limits of thermodynamic equilibrium, triggering the build up of a Schottky barrier at the interface which can be turned on and off with ferroelectric switching. This interplay between electronic and electrochemical degrees of freedom yields very large values of the electroresistance (more than 10^{6}% at low temperatures) and enables a controlled switching between clockwise and counterclockwise switching modes in the same junction (and consequently, a change of the sign of the electroresistance). The strong coupling found between electrochemical and electronic degrees of freedom sheds light on the growing debate between resistive and ferroelectric switching in ferroelectric tunnel junctions, and moreover, can be the source of novel concepts in memory devices and neuromorphic computing.
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Affiliation(s)
| | - F Gallego
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- 2D-Foundry Group, Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
| | - J Tornos
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- 2D-Foundry Group, Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
| | - V Rouco
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - J I Beltran
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - C Munuera
- 2D-Foundry Group, Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
| | | | - M Cabero
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - F Cuellar
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - D Arias
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - G Sanchez-Santolino
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- 2D-Foundry Group, Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - F J Mompean
- 2D-Foundry Group, Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
| | - M Garcia-Hernandez
- 2D-Foundry Group, Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
| | - A Rivera-Calzada
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
| | - S J Pennycook
- Department of Materials Science & Engineering, National University of Singapore, Singapore 117575
| | - M Varela
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M C Muñoz
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
- Instituto de Ciencia de Materiales de Madrid ICMM-CSIC, 28049 Madrid, Spain
| | - Z Sefrioui
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
- GFMC, Instituto de Magnetismo Aplicado, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - C Leon
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
- GFMC, Instituto de Magnetismo Aplicado, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - J Santamaria
- GFMC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Unidad Asociada UCM/CSIC, Laboratorio de Heteroestructuras con Aplicación en Spintrónica, 28049 Madrid, Spain
- GFMC, Instituto de Magnetismo Aplicado, Universidad Complutense de Madrid, 28040 Madrid, Spain
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19
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Piñeiro-López L, Valverde-Muñoz FJ, Trzop E, Muñoz MC, Seredyuk M, Castells-Gil J, da Silva I, Martí-Gastaldo C, Collet E, Real JA. Guest induced reversible on-off switching of elastic frustration in a 3D spin crossover coordination polymer with room temperature hysteretic behaviour. Chem Sci 2020; 12:1317-1326. [PMID: 34163895 PMCID: PMC8179064 DOI: 10.1039/d0sc04420b] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A binary reversible switch between low-temperature multi-step spin crossover (SCO), through the evolution of the population γHS(T) with high-spin (HS)-low-spin (LS) sequence: HS1LS0 (state 1) ↔ HS2/3LS1/3 (state 2) ↔ HS1/2LS1/2 (state 3) ↔ HS1/3LS2/3 (state 4) ↔ HS0LS1 (state 5), and complete one step hysteretic spin transition featuring 20 K wide thermal hysteresis centred at 290 K occurs in the three-dimensional (3D) Hofmann-type porous coordination polymer {FeII(3,8phen)[Au(CN)2]2}·xPhNO2 (3,8phen = 3,8-phenanthroline, PhNO2 = nitrobenzene), made up of two identical interpenetrated pcu-type frameworks. The included PhNO2 guest (x = 1, 1·PhNO2) acts as a molecular wedge between the interpenetrated 3D frameworks via PhNO2-3,8phen intermolecular recognition and is the source of the strong elastic frustration responsible for the multi-step regime. Detailed X-ray single crystal analysis reflects competition between spatial periodicities of structurally inequivalent HS and LS SCO centres featuring: (i) symmetry breaking (state 3) with ⋯HS–LS⋯ ordering with γHS = 1/2; and (ii) occurrence of spatial modulation of the structure providing evidence for stabilization of local or aperiodic ordered mixed spin states for states 2 and 4 (with γHS ≈ 2/3) and 4 (with γHS ≈ 1/3), respectively. Below c.a. 20 K, structural and magnetic analyses show the photogeneration of a metastable HS*, state 6. The room-temperature single-step hysteretic regime appears with release of the guest (x = 0, 1) and the elastic frustration, and reversibly switches back to the original four-step behaviour upon guest re-adsorption. Both uncommon relevant SCO events meeting in the same material represent a rare opportunity to compare them in the frame of antiferro- and ferro-elastic transitions. Reversible switch between a robust bistable two-state room temperature spin crossover (SCO) and its transformation in a four-stepped elastically frustrated SCO due to guest inclusion in a metal–organic Hofmann framework.![]()
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Affiliation(s)
- Lucía Piñeiro-López
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | | | - Elzbieta Trzop
- Univ Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251 F-35000 Rennes France
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València Camino de Vera s/n E-46022 Valencia Spain
| | - Maksym Seredyuk
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain .,Department of Chemistry, Taras Shevchenko National University of Kyiv 64/13, Volodymyrska Street 01601 Kyiv Ukraine
| | - Javier Castells-Gil
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | - Iván da Silva
- ISIS Neutron Facility, STFC Rutherford Appleton Laboratory Chilton Oxfordshire OX11 0QX UK
| | - Carlos Martí-Gastaldo
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | - Eric Collet
- Univ Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251 F-35000 Rennes France
| | - José Antonio Real
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
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20
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Pérez D, Muñoz-Caro T, Silva LMR, Muñoz MC, Molina JM, Taubert A, Hermosilla C, Ruiz A. Eimeria ninakohlyakimovae casts NOX-independent NETosis and induces enhanced IL-12, TNF-α, IL-6, CCL2 and iNOS gene transcription in caprine PMN. Exp Parasitol 2020; 220:108034. [PMID: 33188795 DOI: 10.1016/j.exppara.2020.108034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 12/25/2022]
Abstract
Eimeria ninakohlyakimovae represents a highly pathogenic coccidian parasite causing severe haemorrhagic typhlocolitis in goat kids worldwide. NETosis was recently described as an efficient defense mechanism of polymorphonuclear neutrophils (PMN) acting against different parasites in vitro and in vivo. In vitro interactions of caprine PMN with parasitic stages of E. ninakohlyakimovae (i. e. oocysts and sporozoites) as well as soluble oocyst antigens (SOA) were analyzed at different ratios, concentrations and time spans. Extracellular DNA staining was used to illustrate classical molecules induced during caprine NETosis [i. e. histones (H3) and neutrophil elastase (NE)] via antibody-based immunofluorescence analyses. Functional inhibitor treatments with DPI and DNase I were applied to unveil role of NADPH oxidase (NOX) and characterize DNA-backbone composition of E. ninakohlyakimovae-triggered caprine NETosis. Scanning electron microscopy (SEM)- and immunofluorescence-analyses demonstrated that caprine PMN underwent NETosis upon contact with sporozoites and oocysts of E. ninakohlyakimovae, ensnaring filaments which firmly entrapped parasites. Detailed co-localization studies of E. ninakohlyakimovae-induced caprine NETosis revealed presence of PMN-derived DNA being adorned with nuclear H3 and NE corroborating molecular characteristics of NETosis. E. ninakohlyakoimovae-induced caprine NETosis was found to be NOX-independent since DPI inhibition led to a slight decrease of NETosis. Exposure of caprine PMN to vital E. ninakohlyakimovae sporozoites as well as SOA resulted in up-regulation of IL-12, TNF-α, IL-6, CCL2 and iNOS gene transcription in stimulated PMN. Since vital E. ninakohlyakimovae-sporozoites induced caprine NETosis, this effective entrapment mechanism might reduce initial sporozoite epithelial host cell invasion during goat coccidiosis ultimately resulting in less macromeront formation and reduced merozoites I production.
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Affiliation(s)
- D Pérez
- Parasitology Unit, Department of Animal Pathology, Faculty of Veterinary Medicine, University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - T Muñoz-Caro
- Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomas, Chile
| | - L M R Silva
- Institute of Parasitology, Faculty of Veterinary Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - M C Muñoz
- Parasitology Unit, Department of Animal Pathology, Faculty of Veterinary Medicine, University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - J M Molina
- Parasitology Unit, Department of Animal Pathology, Faculty of Veterinary Medicine, University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - A Taubert
- Institute of Parasitology, Faculty of Veterinary Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - C Hermosilla
- Institute of Parasitology, Faculty of Veterinary Medicine, Justus Liebig University Giessen, Giessen, Germany
| | - A Ruiz
- Parasitology Unit, Department of Animal Pathology, Faculty of Veterinary Medicine, University of Las Palmas de Gran Canaria, Las Palmas, Spain.
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21
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Carceller‐Ferrer L, González del Campo A, Vila C, Blay G, Muñoz MC, Pedro JR. Organocatalytic Enantioselective Aminoalkylation of 5‐Aminopyrazole Derivatives with Cyclic Imines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Laura Carceller‐Ferrer
- A. González del Campo Departament de Química Orgànica Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Aleix González del Campo
- A. González del Campo Departament de Química Orgànica Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Carlos Vila
- A. González del Campo Departament de Química Orgànica Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- A. González del Campo Departament de Química Orgànica Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada Universitat Politècnica de València Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- A. González del Campo Departament de Química Orgànica Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
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22
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Turo-Cortés R, Bartual-Murgui C, Castells-Gil J, Muñoz MC, Martí-Gastaldo C, Real JA. Reversible guest-induced gate-opening with multiplex spin crossover responses in two-dimensional Hofmann clathrates. Chem Sci 2020; 11:11224-11234. [PMID: 34094363 PMCID: PMC8162911 DOI: 10.1039/d0sc04246c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/21/2020] [Indexed: 11/21/2022] Open
Abstract
Spin crossover (SCO) compounds are very attractive types of switchable materials due to their potential applications in memory devices, actuators or chemical sensors. Rational chemical tailoring of these switchable compounds is key for achieving new functionalities in synergy with the spin state change. However, the lack of precise structural information required to understand the chemical principles that control the SCO response with external stimuli may eventually hinder further development of spin switching-based applications. In this work, the functionalization with an amine group in the two-dimensional (2D) SCO compound {Fe(5-NH2Pym)2[MII(CN)4]} (1M, 5-NH2Pym = 5-aminopyrimidine, MII = Pt (1Pt), Pd (1Pd)) confers versatile host-guest chemistry and structural flexibility to the framework primarily driven by the generation of extensive H-bond interactions. Solvent free 1M species reversibly adsorb small protic molecules such as water, methanol or ethanol yielding the 1M·H2O, 1M·0.5MeOH or 1M·xEtOH (x = 0.25-0.40) solvated derivatives. Our results demonstrate that the reversible structural rearrangements accompanying these adsorption/desorption processes (1M ↔ 1M·guest) follow a gate-opening mechanism whose kinetics depend not only on the nature of the guest molecule and that of the host framework (1Pt or 1Pd) but also on their reciprocal interactions. In addition, a predictable and reversible guest-induced SCO modulation has been observed and accurately correlated with the associated crystallographic transformations monitored in detail by single crystal X-ray diffraction.
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Affiliation(s)
- Rubén Turo-Cortés
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | - Carlos Bartual-Murgui
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | - Javier Castells-Gil
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València Camino de Vera s/n E-46022 Valencia Spain
| | - Carlos Martí-Gastaldo
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
| | - José Antonio Real
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia Valencia Spain
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23
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Valverde-Muñoz FJ, Seredyuk M, Muñoz MC, Molnár G, Bibik YS, Real JA. Thermochromic Meltable Materials with Reverse Spin Transition Controlled by Chemical Design. Angew Chem Int Ed Engl 2020; 59:18632-18638. [PMID: 32666596 DOI: 10.1002/anie.202006453] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 01/01/2023]
Abstract
We report a series of meltable FeII complexes, which, depending on the length of aliphatic chains, display abrupt forward low-spin to high-spin transition or unprecedented melting-triggered reverse high-spin to low-spin transition on temperature rise. The reverse spin transition is perfectly reproducible on thermal cycling and the obtained materials are easily processable in the form of thin film owing to their soft-matter nature. We found that the discovered approach represents a potentially generalizable new avenue to control both the location in temperature and the direction of the spin transition in meltable compounds.
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Affiliation(s)
| | - Maksym Seredyuk
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain.,National Taras Shevchenko University, Department of Chemistry, Volodymyrska Str. 64, Kyiv, 01601, Ukraine
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, 46022, Valencia, Spain
| | - Gábor Molnár
- LCC, CNRS &, Université de Toulouse (UPS, INP), 205 route de Narbonne, 31077, Toulouse, France
| | - Yurii S Bibik
- National Taras Shevchenko University, Department of Chemistry, Volodymyrska Str. 64, Kyiv, 01601, Ukraine.,UkrSyntez Ltd., 67 Chervonotkatska Str., 02094, Kyiv, Ukraine
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
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24
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Valverde‐Muñoz F, Seredyuk M, Muñoz MC, Molnár G, Bibik YS, Real JA. Thermochromic Meltable Materials with Reverse Spin Transition Controlled by Chemical Design. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Maksym Seredyuk
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia 46980 Paterna Valencia Spain
- National Taras Shevchenko University Department of Chemistry Volodymyrska Str. 64 Kyiv 01601 Ukraine
| | - M. Carmen Muñoz
- Departamento de Física Aplicada Universitat Politècnica de València 46022 Valencia Spain
| | - Gábor Molnár
- LCC, CNRS & Université de Toulouse (UPS, INP) 205 route de Narbonne 31077 Toulouse France
| | - Yurii S. Bibik
- National Taras Shevchenko University Department of Chemistry Volodymyrska Str. 64 Kyiv 01601 Ukraine
- UkrSyntez Ltd. 67 Chervonotkatska Str. 02094 Kyiv Ukraine
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia 46980 Paterna Valencia Spain
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25
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Bartual-Murgui C, Rubio-Giménez V, Meneses-Sánchez M, Valverde-Muñoz FJ, Tatay S, Martí-Gastaldo C, Muñoz MC, Real JA. Epitaxial Thin-Film vs Single Crystal Growth of 2D Hofmann-Type Iron(II) Materials: A Comparative Assessment of their Bi-Stable Spin Crossover Properties. ACS Appl Mater Interfaces 2020; 12:29461-29472. [PMID: 32496753 DOI: 10.1021/acsami.0c05733] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Integration of the ON-OFF cooperative spin crossover (SCO) properties of FeII coordination polymers as components of electronic and/or spintronic devices is currently an area of great interest for potential applications. This requires the selection and growth of thin films of the appropriate material onto selected substrates. In this context, two new series of cooperative SCO two-dimensional FeII coordination polymers of the Hofmann-type formulated {FeII(Pym)2[MII(CN)4]·xH2O}n and {FeII(Isoq)2[MII(CN)4]}n (Pym = pyrimidine, Isoq = isoquinoline; MII = Ni, Pd, Pt) have been synthesized, characterized, and the corresponding Pt derivatives selected for fabrication of thin films by liquid-phase epitaxy (LPE). At ambient pressure, variable-temperature single-crystal X-ray diffraction, magnetic, and calorimetric studies of the Pt and Pd microcrystalline materials of both series display strong cooperative thermal induced SCO properties. In contrast, this property is only observed for higher pressures in the Ni derivatives. The SCO behavior of the {FeII(L)2[PtII(CN)4]}n thin films (L = Pym, Isoq) were monitored by magnetization measurements in a SQUID magnetometer and compared with the homologous samples of the previously reported isostructural {FeII(Py)2[PtII(CN)4]}n (Py = pyridine). Application of the theory of regular solutions to the SCO of the three derivatives allowed us to evaluate the effect on the characteristic SCO temperatures and the hysteresis, as well as the associated thermodynamic parameters when moving from microcrystalline bulk solids to nanometric thin films.
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Affiliation(s)
- Carlos Bartual-Murgui
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
| | - Víctor Rubio-Giménez
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
| | - Manuel Meneses-Sánchez
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
| | - Francisco Javier Valverde-Muñoz
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
| | - Sergio Tatay
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
| | - Carlos Martí-Gastaldo
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València. Camino de Vera s/n, E-46022, Valencia, Spain
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Spain
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26
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Piñeiro‐López L, Seredyuk M, Muñoz MC, Real JA. Effect of Guest Molecules on Spin Transition Temperature in Loaded Hofmann‐Like Clathrates with Improved Porosity. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901347] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Lucía Piñeiro‐López
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/Catedrático José Beltrán Martínez, 2 46980 Valencia (Paterna) Spain
| | - Maksym Seredyuk
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/Catedrático José Beltrán Martínez, 2 46980 Valencia (Paterna) Spain
- Department of Chemistry Departament de Química Inorgànica Taras Shevchenko National University Volodymyrska Str. 64 01601 Kyiv Ukraine
| | - M. Carmen Muñoz
- Departamento de Física Aplicada Departament de Química Inorgànica Universitat Politècnica de València Camino de Vera s/n 46022 Valencia Spain
| | - José A. Real
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/Catedrático José Beltrán Martínez, 2 46980 Valencia (Paterna) Spain
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27
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Turner GF, Campbell F, Moggach SA, Parsons S, Goeta AE, Muñoz MC, Real JA. Single-Crystal X-Ray Diffraction Study of Pressure and Temperature-Induced Spin Trapping in a Bistable Iron(II) Hofmann Framework. Angew Chem Int Ed Engl 2020; 59:3106-3111. [PMID: 31782240 DOI: 10.1002/anie.201914360] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Indexed: 11/05/2022]
Abstract
High-pressure single-crystal X-ray diffraction has been used to trap both the low-spin (LS) and high-spin (HS) states of the iron(II) Hofmann spin crossover framework, [FeII (pdm)(H2 O)[Ag(CN)2 ]2 ⋅H2 O, under identical experimental conditions, allowing the structural changes arising from the spin-transition to be deconvoluted from previously reported thermal effects.
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Affiliation(s)
- Gemma F Turner
- School of Molecular Sciences/Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia
| | - Fallyn Campbell
- EastChem School of Chemistry and Centre for Science at Extreme Conditions, The University of Edinburgh, Kings Buildings, West Mains Road, Edinburgh, EH9 3JJ, UK
| | - Stephen A Moggach
- School of Molecular Sciences/Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA, 6009, Australia
| | - Simon Parsons
- EastChem School of Chemistry and Centre for Science at Extreme Conditions, The University of Edinburgh, Kings Buildings, West Mains Road, Edinburgh, EH9 3JJ, UK
| | - Andrés E Goeta
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valéncia, Spain
| | - José A Real
- Institut de Ciencia Molecular/ Departament de Quimica Inorganica, Universitat de València, Doctor Moliner 50, 46100 Burjassot, València, Spain
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28
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Turner GF, Campbell F, Moggach SA, Parsons S, Goeta AE, Muñoz MC, Real JA. Single‐Crystal X‐Ray Diffraction Study of Pressure and Temperature‐Induced Spin Trapping in a Bistable Iron(II) Hofmann Framework. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gemma F. Turner
- School of Molecular Sciences/Centre for Microscopy, Characterisation and Analysis The University of Western Australia 35 Stirling Highway, Crawley Perth WA 6009 Australia
| | - Fallyn Campbell
- EastChem School of Chemistry and Centre for Science at Extreme Conditions The University of Edinburgh Kings Buildings, West Mains Road Edinburgh EH9 3JJ UK
| | - Stephen A. Moggach
- School of Molecular Sciences/Centre for Microscopy, Characterisation and Analysis The University of Western Australia 35 Stirling Highway, Crawley Perth WA 6009 Australia
| | - Simon Parsons
- EastChem School of Chemistry and Centre for Science at Extreme Conditions The University of Edinburgh Kings Buildings, West Mains Road Edinburgh EH9 3JJ UK
| | - Andrés E. Goeta
- Department of Chemistry Durham University South Road Durham DH1 3LE UK
| | - M. Carmen Muñoz
- Departamento de Física Aplicada Universitat Politècnica de València Camino de Vera s/n 46022 Valéncia Spain
| | - José A. Real
- Institut de Ciencia Molecular/ Departament de Quimica Inorganica Universitat de València Doctor Moliner 50 46100 Burjassot València Spain
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29
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Torán R, Vila C, Sanz-Marco A, Muñoz MC, Pedro JR, Blay G. Organocatalytic Enantioselective 1,6-aza
-Michael Addition of Isoxazolin-5-ones to p
-Quinone Methides. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901907] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ricardo Torán
- Departament de Química Orgànica; Universitat de València; C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica; Universitat de València; C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica; Universitat de València; C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada; Universitat Politècnica de València; 46071 València Spain
| | - José R. Pedro
- Departament de Química Orgànica; Universitat de València; C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica; Universitat de València; C/ Dr. Moliner 50 46100 Burjassot (València) Spain
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30
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Blay G, Castilla A, Sanz D, Sanz-Marco A, Vila C, Muñoz MC, Pedro JR. Enantioselective zinc-mediated conjugate alkynylation of saccharin-derived 1- aza-butadienes. Chem Commun (Camb) 2020; 56:9461-9464. [DOI: 10.1039/d0cc04221h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diethylzinc and a bis(hydroxyl)malonamide ligand allow the first conjugate alkynylation of α,β-unsaturated imines. Excellent enatioselectivities are obtained with aliphatic alkynes.
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Affiliation(s)
- Gonzalo Blay
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Alvaro Castilla
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - David Sanz
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Carlos Vila
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada
- Universitat Politècnica de València
- E-46022 València
- Spain
| | - José R. Pedro
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
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31
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Lan W, Valverde-Muñoz FJ, Dou Y, Hao X, Muñoz MC, Zhou Z, Liu H, Liu Q, Real JA, Zhang D. A thermal- and light-induced switchable one-dimensional rare loop-like spin crossover coordination polymer. Dalton Trans 2019; 48:17014-17021. [PMID: 31693028 DOI: 10.1039/c9dt03285a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rare loop-like isostructural one-dimensional coordination polymer (1D-CP) systems formulated as {Fe(DPIP)2(NCSe)2}n·4DMF (1) and {Fe(DPIP)2(NCSe)2}n·4DMF (2) were obtained by self-assembling FeII and pseudohalide NCX-(X = S, Se) ions in presence of the V-shaped bidentate bridging ligand, namely, N,N'-dipyridin-4-ylisophthalamide (DPIP), and were characterized by elemental analysis, IR spectroscopy, TGA, single crystal X-ray diffraction and powder X-ray diffraction. The magnetic studies show that complex 2 undergoes a complete thermally induced spin crossover (SCO) behavior centered at T1/2 = 120 K with ca. 5 K thermal hysteresis loop and light-induced excited spin state trapping effect (LIESST) with TLIESST = 65 K. However, either the homologous X = S (1) or the desolvated form of complex 2 is high spin at all temperatures, proving further the concerted synergy for the SCO of 2 between the intrinsic ligand field and that indirectly induced via hydrogen bond interaction. The current results provide valuable information for the design of new 1D SCO systems via the rational control of the cooperated effects derived from the intramolecular coordination bond and the intermolecular supramolecular interactions.
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Affiliation(s)
- Wenlong Lan
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Francisco Javier Valverde-Muñoz
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Valencia, Spain.
| | - Yong Dou
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Xiaoyun Hao
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Zhen Zhou
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Hui Liu
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Qingyun Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, PR China
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, 46980 Paterna, Valencia, Spain.
| | - Daopeng Zhang
- College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
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32
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Carceller-Ferrer L, Vila C, Blay G, Fernández I, Muñoz MC, Pedro JR. Organocatalytic enantioselective aminoalkylation of pyrazol-3-ones with aldimines generated in situ from α-amido sulfones. Org Biomol Chem 2019; 17:9859-9863. [PMID: 31720678 DOI: 10.1039/c9ob02252j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an efficient asymmetric aminoalkylation of pyrazolones with α-amido sulfones catalyzed by a quinine-derived squaramide in dichloromethane/aqueous media has been established. A variety of chiral amines were obtained with high yields (up to 98%) and excellent enantioselectivities (up to 99% ee). The corresponding products are transformed into optically active acetylated pyrazoles after treatment with Ac2O/Et3N, because of the instability of some adducts. The reaction tolerates a wide range of α-amido sulfones and different pyrazolones.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
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33
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Valverde-Muñoz FJ, Bartual-Murgui C, Piñeiro-López L, Muñoz MC, Real JA. Influence of Host–Guest and Host–Host Interactions on the Spin-Crossover 3D Hofmann-type Clathrates {FeII(pina)[MI(CN)2]2}·xMeOH (MI = Ag, Au). Inorg Chem 2019; 58:10038-10046. [DOI: 10.1021/acs.inorgchem.9b01189] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Francisco Javier Valverde-Muñoz
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, Paterna, 46980 Valencia, Spain
| | - Carlos Bartual-Murgui
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, Paterna, 46980 Valencia, Spain
| | - Lucía Piñeiro-López
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, Paterna, 46980 Valencia, Spain
| | - M. Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol), Universitat de València, C/Catedrático José Beltrán Martínez 2, Paterna, 46980 Valencia, Spain
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34
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Rostoll-Berenguer J, Blay G, Muñoz MC, Pedro JR, Vila C. A Combination of Visible-Light Organophotoredox Catalysis and Asymmetric Organocatalysis for the Enantioselective Mannich Reaction of Dihydroquinoxalinones with Ketones. Org Lett 2019; 21:6011-6015. [DOI: 10.1021/acs.orglett.9b02157] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jaume Rostoll-Berenguer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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35
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Vila C, Dharmaraj NR, Faubel A, Blay G, Cardona ML, Muñoz MC, Pedro JR. Regio-, Diastereo-, and Enantioselective Organocatalytic Addition of 4-Substituted Pyrazolones to Isatin-Derived Nitroalkenes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900328] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Nisshanth Raj Dharmaraj
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Antonio Faubel
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Luz Cardona
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada; Universitat Politècnica de València; Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
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36
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Valverde-Muñoz FJ, Seredyuk M, Meneses-Sánchez M, Muñoz MC, Bartual-Murgui C, Real JA. Discrimination between two memory channels by molecular alloying in a doubly bistable spin crossover material. Chem Sci 2019; 10:3807-3816. [PMID: 31015922 PMCID: PMC6457193 DOI: 10.1039/c8sc05256e] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/20/2019] [Indexed: 11/21/2022] Open
Abstract
A multistable spin crossover (SCO) molecular alloy system [Fe1-x M x (nBu-im)3(tren)](P1-y As y F6)2 (M = ZnII, NiII; (nBu-im)3(tren) = tris(n-butyl-imidazol(2-ethylamino))amine) has been synthesized and characterized. By controlling the composition of this isomorphous series, two cooperative thermally induced SCO events featuring distinct critical temperatures (T c) and hysteresis widths (ΔT c, memory) can be selected at will. The pristine derivative 100As (x = 0, y = 1) displays a strong cooperative two-step SCO and two reversible structural phase transitions (PTs). The low temperature PTLT and the SCO occur synchronously involving conformational changes of the ligand's n-butyl arms and two different arrangements of the AsF6 - anions [T1c = 174 K (ΔT1c = 17 K), T2c = 191 K (ΔT2c = 23 K) (scan rate 2 K min-1)]. The high-temperature PTHT takes place in the high-spin state domain and essentially involves rearrangement of the AsF6 - anions [TPTc = 275 K (ΔTPTc = 16 K)]. This behavior strongly contrasts with that of the homologous 100P [x = 0, y = 0] derivative where two separate cooperative one-step SCO can be selected by controlling the kinetics of the coupled PTLT at ambient pressure: (i) one at low temperatures, T c = 122 K (ΔT c = 9 K), for temperature scan rates (>1 K min-1) (memory channel A) where the structural modifications associated with PTLS are inhibited; (ii) the other centered at T c = 155 K (ΔT c = 41 K) for slower temperature scan rates ≤0.1 K min-1 (memory channel B). These two SCO regimes of the 100P derivative transform reversibly into the two-step SCO of 100As upon application of hydrostatic pressure (ca. 0.1 GPa) denoting the subtle effect of internal chemical pressure on the SCO behavior. Precise control of AsF6 - ↔ PF6 - substitution, and hence of the PTLT kinetics, selectively selects the memory channel B of 100P when x = 0 and y ≈ 0.7. Meanwhile, substitution of FeII with ZnII or NiII [x ≈ 0.2, y = 0] favors the low temperature memory channel A at any scan rate. This intriguing interplay between PT, SCO and isomorphous substitution was monitored by single crystal and powder X-ray diffractometries, and magnetic and calorimetric measurements.
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Affiliation(s)
| | - Maksym Seredyuk
- Departament de Química Inorgànica , Institut de Ciència Molecular (ICMol) , Universitat de València , Valencia , Spain .
- On leave from Department of Chemistry , Taras Shevchenko National University of Kyiv , 64/13, Volodymyrska Street , 01601 , Kyiv , Ukraine . ;
| | - Manuel Meneses-Sánchez
- Departament de Química Inorgànica , Institut de Ciència Molecular (ICMol) , Universitat de València , Valencia , Spain .
| | - M Carmen Muñoz
- Departament de Física Aplicada , Universitat Politècnica de València , Camino de Vera s/n , E-46022 , Valencia , Spain
| | - Carlos Bartual-Murgui
- Departament de Química Inorgànica , Institut de Ciència Molecular (ICMol) , Universitat de València , Valencia , Spain .
| | - José A Real
- Departament de Química Inorgànica , Institut de Ciència Molecular (ICMol) , Universitat de València , Valencia , Spain .
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37
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Vila C, Slack S, Blay G, Muñoz MC, Pedro JR. Regio‐ and Stereoselective Synthesis of 3‐Pyrazolylidene‐2‐oxindole Compounds by Nucleophilic Vinylic Substitution of (
E
)‐3‐(Nitromethylene)indolin‐2‐one. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Sophie Slack
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física AplicadaUniversitat Politècnica de València Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de QuímicaUniversitat de València Dr. Moliner 50 46100 Burjassot València Spain
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38
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Lan W, Valverde-Muñoz FJ, Hao X, Dou Y, Muñoz MC, Zhou Z, Liu H, Liu Q, Real JA, Zhang D. An unprecedented hetero-bimetallic three-dimensional spin crossover coordination polymer based on the tetrahedral [Hg(SeCN)4]2− building block. Chem Commun (Camb) 2019; 55:4607-4610. [DOI: 10.1039/c9cc01291e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new non-Hoffmann type of hetero-bimetallic HgII–FeII spin-crossover coordination polymer has been structurally and magnetically investigated.
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Affiliation(s)
- Wenlong Lan
- College of Chemical and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | | | - Xiaoyun Hao
- College of Chemical and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Yong Dou
- College of Chemical and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - M. Carmen Muñoz
- Departamento de Física Aplicada
- Universitat Politècnica de València
- E-46022 Valencia
- Spain
| | - Zhen Zhou
- College of Chemical and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Hui Liu
- College of Chemical and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Qingyun Liu
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao 266510
- P. R. China
| | - José Antonio Real
- Instituto de Ciencia Molecular (ICMol)
- Universitat de València
- 46980 Paterna
- Spain
| | - Daopeng Zhang
- College of Chemical and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
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Vila C, Tortosa A, Blay G, Muñoz MC, Pedro JR. Organocatalytic enantioselective functionalization of indoles in the carbocyclic ring with cyclic imines. NEW J CHEM 2019. [DOI: 10.1039/c8nj05577g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic enantioselective functionalization in the carbocyclic ring of indoles with benzoxathiazine 2,2-dioxides is described using a quinine-derived bifunctional organocatalyst.
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Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- València
- Spain
| | - Arturo Tortosa
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- València
- Spain
| | - Gonzalo Blay
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- València
- Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada
- Universitat Politècnica de València
- Camino de Vera s/n
- 46022 València
- Spain
| | - José R. Pedro
- Departament de Química Orgànica
- Facultat de Química
- Universitat de València
- València
- Spain
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40
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Martínez-Pardo P, Blay G, Vila C, Sanz-Marco A, Muñoz MC, Pedro JR. Enantioselective Synthesis of 5-Trifluoromethyl-2-oxazolines under Dual Silver/Organocatalysis. J Org Chem 2018; 84:314-325. [DOI: 10.1021/acs.joc.8b02808] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pablo Martínez-Pardo
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Burjassot, València 46100, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Burjassot, València 46100, Spain
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Burjassot, València 46100, Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Burjassot, València 46100, Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, València 46022, Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Burjassot, València 46100, Spain
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41
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Delgado T, Meneses-Sánchez M, Piñeiro-López L, Bartual-Murgui C, Muñoz MC, Real JA. Thermo- and photo-modulation of exciplex fluorescence in a 3D spin crossover Hofmann-type coordination polymer. Chem Sci 2018; 9:8446-8452. [PMID: 30542594 PMCID: PMC6247521 DOI: 10.1039/c8sc02677g] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 09/07/2018] [Indexed: 12/20/2022] Open
Abstract
The search for bifunctional materials showing synergies between spin crossover (SCO) and luminescence has attracted substantial interest since they could be promising platforms for new switching electronic and optical technologies. In this context, we present the first three-dimensional FeII Hofmann-type coordination polymer exhibiting SCO properties and luminescence. The complex {FeII(bpben)[Au(CN)2]}@pyr (bpben = 1,4-bis(4-pyridyl)benzene) functionalized with pyrene (pyr) guests undergoes a cooperative multi-step SCO, which has been investigated by single crystal X-ray diffraction, single crystal UV-Vis absorption spectroscopy, and magnetic and calorimetric measurements. The resulting fluorescence from pyrene and exciplex emissions are controlled by the thermal and light irradiation (LIESST effect) dependence of the high/low-spin state population of FeII. Conversely, the SCO can be tracked by monitoring the fluorescence emission. This ON-OFF interplay between SCO and luminescence combined with the amenability of Hofmann-type materials to be processed at the nano-scale may be relevant for the generation of SCO-based sensors, actuators and spintronic devices.
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Affiliation(s)
- Teresa Delgado
- Départment de Chimie Physique , Université de Genève , Rue Ernest Ansermet, 30 , 1211 Genève , Switzerland
| | - Manuel Meneses-Sánchez
- Departament de Química Inorgánica , Institut de Ciència Molecular (ICMol) , Universitat de València , Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Spain
| | - Lucía Piñeiro-López
- Departament de Química Inorgánica , Institut de Ciència Molecular (ICMol) , Universitat de València , Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Spain
| | - Carlos Bartual-Murgui
- Departament de Química Inorgánica , Institut de Ciència Molecular (ICMol) , Universitat de València , Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Spain
| | - M Carmen Muñoz
- Departamento de Física Aplicada , Universitat Politècnica de València , Camino de Vera s/n , 46022 Valencia , Spain
| | - José Antonio Real
- Departament de Química Inorgánica , Institut de Ciència Molecular (ICMol) , Universitat de València , Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Spain
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42
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Valverde-Muñoz FJ, Muñoz MC, Ferrer S, Bartual-Murgui C, Real JA. Switchable Spin-Crossover Hofmann-Type 3D Coordination Polymers Based on Tri- and Tetratopic Ligands. Inorg Chem 2018; 57:12195-12205. [PMID: 30207715 DOI: 10.1021/acs.inorgchem.8b01842] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
FeII spin-crossover (SCO) coordination polymers of the Hofmann type have become an archetypal class of responsive materials. Almost invariably, the construction of their architectures has been based on the use of monotopic and linear ditopic pyridine-like ligands. In the search for new Hofmann-type architectures with SCO properties, here we analyze the possibilities of bridging ligands with higher connectivity degree. More precisely, the synthesis and structure of {FeII(LN3)[MI(CN)2]2}·(Guest) (Guest = nitrobenzene, benzonitrile, o-dichlorobenzene; MI = Ag, Au) and {FeII(LN4)[Ag2(CN)3][Ag(CN)2]}·H2O are described, where LN3 and LN4 are the tritopic and tetratopic ligands 1,3,5-tris(pyridin-4-ylethynyl)benzene and 1,2,4,5-tetrakis(pyridin-4-ylethynyl)benzene. This new series of Hofmann clathrates displays thermo- and photoinduced SCO behaviors.
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Affiliation(s)
- Francisco Javier Valverde-Muñoz
- Institut de Ciència Molecular (ICMol) , Universitat de València , C/Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Valencia , Spain
| | - M Carmen Muñoz
- Departamento de Física Aplicada , Universitat Politècnica de València , Camino de Vera s/n , 46022 Valencia , Spain
| | - Sacramento Ferrer
- Departament de Química Inorgànica , Universitat de València , Av. Vicent Andrés Estellés, s/n , 46100 Burjassot , Valencia , Spain
| | - Carlos Bartual-Murgui
- Institut de Ciència Molecular (ICMol) , Universitat de València , C/Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Valencia , Spain
| | - José A Real
- Institut de Ciència Molecular (ICMol) , Universitat de València , C/Catedrático José Beltrán Martínez, 2 , 46980 Paterna , Valencia , Spain
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43
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Barbera M, Muñoz MC, Rodriguez-Ponce E, Ventura MR. Potential value of tedera (B. bituminosa) as high protein resource for poultry feed. Trop Anim Health Prod 2018; 51:465-468. [PMID: 30083862 DOI: 10.1007/s11250-018-1677-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/25/2018] [Indexed: 11/25/2022]
Abstract
Bituminaria bituminosa (C.H. Stirt.) is a drought tolerant legume that grows spontaneously in subtropical areas: Canary Islands (Spain) and in North African and Mediterranean regions, traditionally used as forage for ruminants. The aim of this research was to investigate the potential of B. bituminosa as a high protein resource for poultry feed by means of feed intake, growth, feed conversion rate (FCR), protein efficiency ratio (PER), and the influence of B. bituminosa feed form (fresh green and dried) on the preference by chicks. B. bituminosa showed higher crude protein content (CP), neutral detergent fiber (NDF), and gross energy than commercial feed. Average daily feed intake (ADFI) for the commercial feed group (control group) was higher than ADFI of the B. bituminosa group (experimental group). However, both groups had no significant differences in total crude protein intake, total NDF intake, average daily gain (ADG), FCR, and PER. The poultry's preference for fresh green B. bituminosa was higher than for dry B. bituminosa. Our results suggest that B. bituminosa (tedera) could be an alternative feedstuff in tropical countries or where protein sources are scarce and costly.
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Affiliation(s)
- M Barbera
- Department of Animal Science, University of Las Palmas de Gran Canaria, Campus de Arucas, Arucas, CP35416, Las Palmas, Spain
| | - M C Muñoz
- Department of Animal Science, University of Las Palmas de Gran Canaria, Campus de Arucas, Arucas, CP35416, Las Palmas, Spain
| | - E Rodriguez-Ponce
- Department of Animal Science, University of Las Palmas de Gran Canaria, Campus de Arucas, Arucas, CP35416, Las Palmas, Spain
| | - M R Ventura
- Department of Animal Science, University of Las Palmas de Gran Canaria, Campus de Arucas, Arucas, CP35416, Las Palmas, Spain.
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44
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Vila C, Rostoll-Berenguer J, Sánchez-García R, Blay G, Fernández I, Muñoz MC, Pedro JR. Enantioselective Synthesis of 2-Amino-1,1-diarylalkanes Bearing a Carbocyclic Ring Substituted Indole through Asymmetric Catalytic Reaction of Hydroxyindoles with Nitroalkenes. J Org Chem 2018; 83:6397-6407. [DOI: 10.1021/acs.joc.8b00612] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, Burjassot, València 46100, Spain
| | - Jaume Rostoll-Berenguer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, Burjassot, València 46100, Spain
| | - Rubén Sánchez-García
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, Burjassot, València 46100, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, Burjassot, València 46100, Spain
| | - Isabel Fernández
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, Burjassot, València 46100, Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, València 46022, Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, Burjassot, València 46100, Spain
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45
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Espinosa M, Blay G, Cardona L, Fernández I, Muñoz MC, Pedro JR. Lanthanum-pyBOX complexes as catalysts for the enantioselective conjugate addition of malonate esters to β,γ-unsaturated α-ketimino esters. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1437422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Miguel Espinosa
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - Gonzalo Blay
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - Luz Cardona
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - Isabel Fernández
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, València, Spain
| | - Jose R. Pedro
- Facultat de Química, Department de Química Orgànica, Universitat de València, Burjassot, Spain
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46
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Piñeiro‐López L, Javier Valverde‐Muñoz F, Seredyuk M, Bartual‐Murgui C, Muñoz MC, Real JA. Cover Feature: Cyanido‐Bridged Fe
II
–M
I
Dimetallic Hofmann‐Like Spin‐Crossover Coordination Polymers Based on 2,6‐Naphthyridine (Eur. J. Inorg. Chem. 3‐4/2018). Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lucía Piñeiro‐López
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/ Catedrático José Beltrán Martínez, 2 46980 Paterna (Valencia) Spain
| | - Francisco Javier Valverde‐Muñoz
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/ Catedrático José Beltrán Martínez, 2 46980 Paterna (Valencia) Spain
| | - Maksym Seredyuk
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/ Catedrático José Beltrán Martínez, 2 46980 Paterna (Valencia) Spain
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska St. 64/13 01601 Kyiv Ukraine
| | - Carlos Bartual‐Murgui
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/ Catedrático José Beltrán Martínez, 2 46980 Paterna (Valencia) Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada Universitat Politècnica de València Camino de Vera s/n 46022 Valencia Spain
| | - José Antonio Real
- Institut de Ciència Molecular (ICMol) Departament de Química Inorgànica Universitat de València C/ Catedrático José Beltrán Martínez, 2 46980 Paterna (Valencia) Spain
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47
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Zhang D, Valverde-Muñoz FJ, Bartual-Murgui C, Piñeiro-López L, Muñoz MC, Real JA. {[Hg(SCN)3]2(μ-L)}2–: An Efficient Secondary Building Unit for the Synthesis of 2D Iron(II) Spin-Crossover Coordination Polymers. Inorg Chem 2018; 57:1562-1571. [DOI: 10.1021/acs.inorgchem.7b02906] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Daopeng Zhang
- Instituto de Ciencia
Molecular (ICMol), Universitat de València, C/Catedrático José
Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
- College
of Chemical Engineering, Shandong University of Technology, Zibo 255049, People’s Republic of China
| | - Francisco Javier Valverde-Muñoz
- Instituto de Ciencia
Molecular (ICMol), Universitat de València, C/Catedrático José
Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
| | - Carlos Bartual-Murgui
- Instituto de Ciencia
Molecular (ICMol), Universitat de València, C/Catedrático José
Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
| | - Lucía Piñeiro-López
- Instituto de Ciencia
Molecular (ICMol), Universitat de València, C/Catedrático José
Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
| | - M. Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - José Antonio Real
- Instituto de Ciencia
Molecular (ICMol), Universitat de València, C/Catedrático José
Beltrán Martínez 2, 46980 Paterna (Valencia), Spain
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48
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Martínez-Pardo P, Blay G, Muñoz MC, Pedro JR, Sanz-Marco A, Vila C. Enantioselective synthesis of chiral oxazolines from unactivated ketones and isocyanoacetate esters by synergistic silver/organocatalysis. Chem Commun (Camb) 2018; 54:2862-2865. [DOI: 10.1039/c8cc00856f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synergistic catalysis by Ag+ and bifunctional squaramide allows the highly diastereo- and enantioselective reaction of isocyanoacetate esters and ketones to give chiral oxazolines bearing a quaternary stereocenter.
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Affiliation(s)
- Pablo Martínez-Pardo
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- València
- Spain
| | - Gonzalo Blay
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- València
- Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada
- Universitat Politècnica de València
- 46022-València
- Spain
| | - José R. Pedro
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- València
- Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- València
- Spain
| | - Carlos Vila
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- València
- Spain
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49
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Vila C, Rendón-Patiño A, Montesinos-Magraner M, Blay G, Muñoz MC, Pedro JR. Organocatalytic Enantioselective Functionalization of Hydroxyquinolines through an Aza-Friedel-Crafts Alkylation with Isatin-derived Ketimines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701217] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Alejandra Rendón-Patiño
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Marc Montesinos-Magraner
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada; Universitat Politècnica de València; Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
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50
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Bartual-Murgui C, Piñeiro-López L, Valverde-Muñoz FJ, Muñoz MC, Seredyuk M, Real JA. Chiral and Racemic Spin Crossover Polymorphs in a Family of Mononuclear Iron(II) Compounds. Inorg Chem 2017; 56:13535-13546. [PMID: 29048915 DOI: 10.1021/acs.inorgchem.7b02272] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Understanding the origin of cooperativity and the equilibrium temperature of transition (T1/2) displayed by the spin-crossover (SCO) compounds as well as controlling these parameters are of paramount importance for future applications. For this task, the occurrence of polymorphism, presented by a number of SCO complexes, may provide deep insight into the influence of the supramolecular organization on the SCO behavior. In this context, herein we present a novel family of mononuclear octahedral FeII complexes with formula cis-[Fe(bqen)(NCX)2], where bqen is the chelating tetradentate ligand N,N'-bis(8-quinolyl)ethane-1,2-diamine and X = S, Se. Depending on the preparation method, these compounds crystallize in either the orthorhombic or the trigonal symmetry systems. While the orthorhombic phase is composed of a racemic mixture of mononuclear complexes (polymorph I), the trigonal phase contains only one of the two possible enantiomers (Λ or Δ), thereby generating a chiral crystal (polymorph II). The four derivatives undergo SCO behavior with well-differentiated T1/2 values occurring in the interval 90-233 K. On one hand, T1/2 is about 110 K (polymorph I) and 87 K (polymorph II) higher for the selenocyanate derivatives in comparison to those for their thiocyanate counterparts. These differences in T1/2 are ascribed not only to the higher ligand field induced by the selenocyanate anion but also to a remarkable difference in the structural reorganization of the [FeN6] coordination core upon SCO. Likewise, the higher cooperativity observed for the thiocyanate derivatives seems to be related to their stronger intermolecular interactions within the crystal. On the other hand, T1/2 is about 53 K (thiocyanate) and 29 K (selenocyanate) higher for the trigonal polymorph II in comparison to those for the orthorhombic polymorph I. These differences, and the small changes observed in cooperativity, stem from the slightly different hetero- and homochiral crystal packing generated by the cis-[Fe(bqen)(NCX)2] molecules, which determines subtle adaptations in the intermolecular contacts and the FeII coordination core.
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Affiliation(s)
- Carlos Bartual-Murgui
- Institut de Ciència Molecular (ICMol), Departament de Química Inorgànica, Universitat de València , C/Catedrático José Beltrán Martínez, 2, 46980 Paterna (Valencia), Spain
| | - Lucía Piñeiro-López
- Institut de Ciència Molecular (ICMol), Departament de Química Inorgànica, Universitat de València , C/Catedrático José Beltrán Martínez, 2, 46980 Paterna (Valencia), Spain
| | - F Javier Valverde-Muñoz
- Institut de Ciència Molecular (ICMol), Departament de Química Inorgànica, Universitat de València , C/Catedrático José Beltrán Martínez, 2, 46980 Paterna (Valencia), Spain
| | - M Carmen Muñoz
- Departamento de Física Aplicada, Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia, Spain
| | - Maksym Seredyuk
- Institut de Ciència Molecular (ICMol), Departament de Química Inorgànica, Universitat de València , C/Catedrático José Beltrán Martínez, 2, 46980 Paterna (Valencia), Spain.,Taras Shevchenko National University , Department of Chemistry, Volodymyrska Str. 64, Kyiv 01601, Ukraine
| | - José Antonio Real
- Institut de Ciència Molecular (ICMol), Departament de Química Inorgànica, Universitat de València , C/Catedrático José Beltrán Martínez, 2, 46980 Paterna (Valencia), Spain
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