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Martínez de Sarasa Buchaca M, de la Cruz-Martínez F, Naranjo J, Rodríguez AM, de la Torre MC, Castro-Osma JA, Sierra MA, Lara-Sánchez A. Design of New Bis(1,2,3-triazol-1-yl)methane-Based Nitrogen Ligands: Synthesis and Coordination Chemistry. Chemistry 2024:e202304291. [PMID: 38490950 DOI: 10.1002/chem.202304291] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/04/2024] [Accepted: 03/15/2024] [Indexed: 03/17/2024]
Abstract
The reaction between bis(1,2,3-triazol-1-yl)methane derivatives and nBuLi and various aldehydes, yielded novel neutral ligand precursors incorporating alcohol functional groups. The resulting compounds exhibited distinct characteristics depending on the steric hindrance of the aldehyde employed. In instances where aromatic aldehydes were utilized, functionalization occurred at the methine group bridging both triazole rings. Conversely, the use of pivalic aldehyde prompted functionalization at the C5 position of the triazole ring. These compounds were subsequently employed as ligand precursors in the synthesis of organometallic aluminum and zinc complexes, yielding dinuclear complexes with high efficiency. The structural elucidation of all compounds was accomplished through spectroscopic methods and validated by X-ray crystallography. Preliminary catalytic investigations into the coupling reaction of cyclohexene oxide and CO2 revealed that aluminum and zinc complexes catalyzed the selective formation of polyether and polycarbonate materials, respectively.
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Affiliation(s)
- Marc Martínez de Sarasa Buchaca
- Universidad de Castilla-La Mancha-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA, 13071-Ciudad, Real, Spain
| | - Felipe de la Cruz-Martínez
- Universidad de Castilla-La Mancha-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia and Instituto Regional de Investigación Científica Aplicada-IRICA, 02071-, Albacete, Spain
| | - Jesús Naranjo
- Universidad de Castilla-La Mancha-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA, 13071-Ciudad, Real, Spain
| | - Ana M Rodríguez
- Universidad de Castilla-La Mancha-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA, 13071-Ciudad, Real, Spain
| | - María C de la Torre
- Instituto de Química Orgánica General Consejo, Superior de Investigaciones Científicas (CSIC), Juan de la Cierva, 3, 28006, -Madrid, Spain
| | - José A Castro-Osma
- Universidad de Castilla-La Mancha-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia and Instituto Regional de Investigación Científica Aplicada-IRICA, 02071-, Albacete, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense de Madrid, 28040, -Madrid, Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA, 13071-Ciudad, Real, Spain
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2
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Aguado S, García-Álvarez P, Cabeza JA, Casarrubios L, Sierra MA. A cross-metathesis approach for polymetallic [FeFe]-hydrogenase mimics. Dalton Trans 2024; 53:3756-3764. [PMID: 38304983 DOI: 10.1039/d3dt04197b] [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: 02/03/2024]
Abstract
A method has been developed for synthesizing [FeFe]-H2ase mimics with diverse structures and properties, employing cross-metathesis of olefins. Vinylmetallocenes (5 and 6) and vinyl half-sandwich complexes (10 and 11) have been used as cross-metathesis partners with [FeFe]-H2ase mimics (4, 8, and 9) bearing a double bond in the moiety attached to the ADT-bridge nitrogen. Electrochemical studies of these complexes, encompassing metallocene-type (7a-b, 12a-b, and 13a-b) as well as half-sandwich derivatives (12c and 13c-d), have demonstrated that the introduction of a redox unit has a marginal impact on the reduction potential of these [FeFe]-H2ase mimics. The application of this cross-metathesis approach has allowed the synthesis of [FeFe]-H2ase mimics featuring an Ir(III) electrochemical antenna (16-18) as well as systems having an electron-donor-photosensitizer structure (ED-PS) (23). The electrocatalytic properties of these complexes have been elucidated through electrochemical studies.
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Affiliation(s)
- Sergio Aguado
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain.
- Centro de Innovación en Química Avanzada, (ORFEO-CINQA), Spain
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica. Facultad de Química, Universidad de Oviedo, 33071 Oviedo, Spain
- Centro de Innovación en Química Avanzada, (ORFEO-CINQA), Spain
| | - Javier A Cabeza
- Departamento de Química Orgánica e Inorgánica. Facultad de Química, Universidad de Oviedo, 33071 Oviedo, Spain
- Centro de Innovación en Química Avanzada, (ORFEO-CINQA), Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain.
- Centro de Innovación en Química Avanzada, (ORFEO-CINQA), Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain.
- Centro de Innovación en Química Avanzada, (ORFEO-CINQA), Spain
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3
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Lorenzo-Aparicio C, Moreno-Blázquez S, Oliván M, Esteruelas MA, Gómez Gallego M, García-Álvarez P, Cabeza JA, Sierra MA. Synthesis, Structure, and Photophysical Properties of Platinum(II) ( N, C, N') Pincer Complexes Derived from Purine Nucleobases†. Inorg Chem 2023; 62:8232-8248. [PMID: 37199376 DOI: 10.1021/acs.inorgchem.3c00650] [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: 05/19/2023]
Abstract
The synthesis of a series of Pt{κ3-N,C,N'-[L]}X (X = Cl, RC≡C) pincer complexes derived from purine and purine nucleosides is reported. In these complexes, the 6-phenylpurine skeleton provides the N,C-cyclometalated fragment, whereas an amine, imine, or pyridine substituent of the phenyl ring supplies the additional N'-coordination point to the pincer complex. The purine N,C-fragment has two coordination positions with the metal (N1 and N7), but the formation of the platinum complexes is totally regioselective. Coordination through the N7 position leads to the thermodynamically favored [6.5]-Pt{κ3-N7,C,N'-[L]}X complexes. However, the coordination through the N1 position is preferred by the amino derivatives, leading to the isomeric kinetic [5.5]-Pt{κ3-N1,C,N'-[L]}X complexes. Extension of the reported methodology to complexes having both pincer and acetylide ligands derived from nucleosides allows the preparation of novel heteroleptic bis-nucleoside compounds that could be regarded as organometallic models of Pt-induced interstrand cross-link. Complexes having amine or pyridine arms are green phosphorescence emitters upon photoexcitation at low concentrations in CH2Cl2 solution and in poly(methyl methacrylate) (PMMA) films. They undergo self-quenching at high concentrations due to molecular aggregation. The presence of intermolecular π-π stacking and weak Pt···Pt interactions was also observed in the solid state by X-ray diffraction analysis.
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Affiliation(s)
- Carmen Lorenzo-Aparicio
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Sonia Moreno-Blázquez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Miguel A Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Mar Gómez Gallego
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, 33071 Oviedo, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Javier A Cabeza
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, 33071 Oviedo, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
| | - Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), https://orfeocinqa.es/
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4
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Torres A, Collado A, Gómez-Gallego M, de Arellano CR, Sierra MA. Heteropolymetallic [FeFe]-Hydrogenase Mimics: Synthesis and Electrochemical Properties. Inorg Chem 2023; 62:3409-3419. [PMID: 36780261 PMCID: PMC9976291 DOI: 10.1021/acs.inorgchem.2c03355] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Indexed: 02/14/2023]
Abstract
The synthesis and electrochemical properties of tetranuclear [Fe2S2]-hydrogenase mimic species containing Pt(II), Ni(II), and Ru(II) complexes have been studied. To this end, a new tetranuclear [Fe2S2] complex containing a 5,5'-diisocyanide-2,2'-bipyridine bridging ligand has been designed and coordinated to the metal complexes through the bipyridine moiety. Thus, the tetranuclear [Fe2S2] complex (6) coordinates to Pt(II), Ni(II) and Ru(II) yielding the corresponding metal complexes. The new metal center in the bipyridine linker modulates the electronic communication between the redox-active [Fe2S2] units. Thus, electrochemical studies and DFT calculations have shown that the presence of metal complexes in the structure strongly affect the electronic communication between the [Fe2S2] centers. In the case of diphosphine platinum compounds 10, the structure of the phosphine ligand plays a crucial role to facilitate or to hinder the electronic communication between [Fe2S2] moieties. Compound 10a, bearing a dppe ligand, shows weak electronic communication (ΔE = 170 mV), whereas the interaction is much weaker in the Pt-dppp derivative 10b (ΔE = 80 mV) and virtually negligible in the Pt-dppf complex 10c. The electronic communication is facilitated by incorporation of a Ru-bis(bipyridine) complex, as observed in the BF4 salt 12 (ΔE = 210 mV) although the reduction of the [FeFe] centers occurs at more negative potentials. Overall, the experimental-computational procedure used in this work allows us to study the electronic interaction between the redox-active centers, which, in turn, can be modulated by a transition metal.
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Affiliation(s)
- Alejandro Torres
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Alba Collado
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Carmen Ramírez de Arellano
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Departamento
de Química Orgánica, Universidad
de Valencia, 46100 Valencia, Spain
| | - Miguel A. Sierra
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
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5
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Torres A, Vicent DJ, Collado A, Gómez-Gallego M, de Arellano CR, Sierra MA. Phosphite Bearing [(μ-ADT) RFe 2(CO) 6] (ADT = Azadithiolate) Moieties: A Tool for the Building of Multimetallic [FeFe]-Hydrogenase Mimics. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00549] [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: 02/17/2023]
Affiliation(s)
- Alejandro Torres
- Departamento de Química Orgánica, Facultad de Química Universidad Complutense, 28040 Madrid, Spain
| | - Diego J. Vicent
- Departamento de Química Orgánica, Facultad de Química Universidad Complutense, 28040 Madrid, Spain
| | - Alba Collado
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica, Facultad de Química Universidad Complutense, 28040 Madrid, Spain
| | | | - Miguel A. Sierra
- Departamento de Química Orgánica, Facultad de Química Universidad Complutense, 28040 Madrid, Spain
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6
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Aguado S, Vicent DJ, Casarrubios L, Ramírez de Arellano C, Sierra MA. Two Complementary Approaches to Silicon-Supported Soluble [FeFe]-Hydrogenase Mimics. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00277] [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: 11/28/2022]
Affiliation(s)
- Sergio Aguado
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Diego J. Vicent
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Valencia, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
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7
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Avello MG, Moreno-Latorre M, de la Torre MC, Casarrubios L, Gornitzka H, Hemmert C, Sierra MA. β-Lactam and penicillin substituted mesoionic metal carbene complexes. Org Biomol Chem 2022; 20:2651-2660. [PMID: 35293422 DOI: 10.1039/d2ob00216g] [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
1,2,3-Triazolylidene MIC M-complexes (M = Au, Pd, Pt) having 2-azetidinones and penicillin G substituents at the triazole ring were prepared by CuAAC on 2-azetidinones having a terminal alkyne tethered at N1, followed by alkylation of the 1,2,3-triazole ring and transmetallation [Au(I), Pd(II) and Pt(II)]. The Au-MIC complexes efficiently catalyze the regioselective cycloisomerization of enynes, while the Pt-MIC complexes were efficient catalysts in hydrosilylation reactions.
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Affiliation(s)
- Marta G Avello
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain. .,Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain. .,Centro de Investigación en Química Avanzada (ORFEO-CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - María Moreno-Latorre
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain. .,Centro de Investigación en Química Avanzada (ORFEO-CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - María C de la Torre
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain. .,Centro de Investigación en Química Avanzada (ORFEO-CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain. .,Centro de Investigación en Química Avanzada (ORFEO-CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Heinz Gornitzka
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Miguel A Sierra
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain. .,Centro de Investigación en Química Avanzada (ORFEO-CINQA), Universidad Complutense, 28040 Madrid, Spain
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8
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Lorenzo-Aparicio C, Gómez Gallego M, Ramírez de Arellano C, Sierra MA. Phosphorescent Ir(III) complexes derived from purine nucleobases. Dalton Trans 2022; 51:5138-5150. [PMID: 35266928 DOI: 10.1039/d1dt04148g] [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
We report the preparation and the study of new types of neutral and cationic phosphorescent heteroleptic Ir(III) complexes derived from 6-phenylpurine nucleosides and nucleotides. Neutral complexes of general formula Ir(C^N)2(acac) 7, and 8a-c (HC^N = 9-substituted-6-phenyl purine) are orange-red emissive upon photoexcitation, with short lifetimes and good quantum yields (0.42-0.65) in both PMMA films and 2-MeTHF at room temperature. In turn, cationic complexes [Ir(C^N)2(dtb-bpy)][PF6] 9, 12a and 12c (dtb-bpy = 4,4'-di-tert-butyl-2,2'-dipyridine) are yellow-green emitters with moderate quantum yields (0.24-0.32).
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Affiliation(s)
- Carmen Lorenzo-Aparicio
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain. .,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
| | - Mar Gómez Gallego
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain. .,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
| | - Carmen Ramírez de Arellano
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica, Universidad de Valencia, 46100-Valencia, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain. .,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain
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9
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Cabeza JA, García-Álvarez P, Gómez-Gallego M, Sierra MA. Advances in the synthesis and reactivity of group 6 metal allenyls. Advances in Organometallic Chemistry 2022. [DOI: 10.1016/bs.adomc.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Cossío FP, de Cózar A, Sierra MA, Casarrubios L, Muntaner JG, Banik BK, Bandyopadhyay D. Role of imine isomerization in the stereocontrol of the Staudinger reaction between ketenes and imines. RSC Adv 2021; 12:104-117. [PMID: 35424513 PMCID: PMC8978721 DOI: 10.1039/d1ra06114c] [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] [Received: 08/12/2021] [Accepted: 12/08/2021] [Indexed: 12/03/2022] Open
Abstract
Computational–experimental analysis has allowed determining that the stereochemistry of the Staudinger reaction between ketenes and imines is strongly associated with the nature of the imine, which affects the two steps of the reaction. The first step, namely the nucleophilic attack of the sp2-hybridized nitrogen atom of the imine on the sp-hybridized carbon atom of the ketene, is affected by the energetically accessible in situ isomerization patterns of the imine. The second step consists of a conrotatory electrocyclization of the zwitterionic intermediate formed in the previous step. This latter pericyclic step depends on the inward/outward torquoelectronic effects generated by the substituents of the imine. The impact of these factors on the stereochemistry of this reaction has been analyzed kinetically by numerical methods. The results of these simulations are compatible with the experimental results and support these conclusions. Experimental and computational studies reveal the importance of isomerization pathways in the Staudinger reaction between ketenes and imines. In the studied cases, the stereochemistry is determined by the pre-cycloaddition isomerization step.![]()
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Affiliation(s)
- Fernando P Cossío
- Kimika Fakultatea, Kimika Organikoa I Saila, Universidad del País Vasco - Euskal Herriko Unibertsitaea P. K. 1071 28018 San Sebastián-Donostia Spain .,Donostia International Physics Centre (DIPC) P.O. Box 1072 20018 San Sebastián-Donostia Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) Spain
| | - Abel de Cózar
- Kimika Fakultatea, Kimika Organikoa I Saila, Universidad del País Vasco - Euskal Herriko Unibertsitaea P. K. 1071 28018 San Sebastián-Donostia Spain .,Donostia International Physics Centre (DIPC) P.O. Box 1072 20018 San Sebastián-Donostia Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) Spain.,IKERBASQUE, Basque Foundation for Science 48009 Bilbao Spain
| | - Miguel A Sierra
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Spain.,Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense 28040 Madrid Spain
| | - Luis Casarrubios
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Spain.,Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense 28040 Madrid Spain
| | - Jaime G Muntaner
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Spain.,Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense 28040 Madrid Spain
| | - Bimal K Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Deanship of Research, Prince Mohammad Bin Fahd University Al Khobar Kingdom of Saudi Arabia .,Department of Chemistry, The University of Texas-Pan American 1201 West University Drive Edinburg Texas 78541 USA
| | - Debasish Bandyopadhyay
- Department of Chemistry, The University of Texas-Pan American 1201 West University Drive Edinburg Texas 78541 USA
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11
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Sierra MA. Anales de Química, la Revista de la Real Sociedad Española de Química - The Magazine of the Spanish Royal Society of Chemistry. Chimia (Aarau) 2021; 75:988-990. [PMID: 34798926 DOI: 10.2533/chimia.2021.988] [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: 11/19/2022] Open
Abstract
: Anales de Química de la Real Sociedad Española de Química is the flagship journal of the Spanish Royal Society of Chemistry (RSEQ). Anales currently publishes different types of articles including essays, interviews, opinion, and review articles written for readers (scientists and teachers) who are not specialists in the field. The journal has a special focus in didactics and history of chemistry. A substantial part of its content is directed towards high school chemistry teachers. An overview of the history of the journal together with its current activities, as well as a brief history of the RSEQ are presented.
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Affiliation(s)
- Miguel A Sierra
- Dpto. de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040-Madrid, Spain ;,
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12
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Torres A, Collado A, Gómez-Gallego M, Ramírez de Arellano C, Sierra MA. Electrocatalytic Behavior of Tetrathiafulvalene (TTF) and Extended Tetrathiafulvalene (exTTF) [FeFe] Hydrogenase Mimics. ACS Org Inorg Au 2021; 2:23-33. [PMID: 36855407 PMCID: PMC9954209 DOI: 10.1021/acsorginorgau.1c00011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
TTF- and exTTF-containing [(μ-S2)Fe2(CO)6] complexes have been prepared by the photochemical reaction of TTF or exTTF and [(μ-S2)Fe2(CO)6]. These complexes are able to interact with PAHs. In the absence of air and in acid media an electrocatalytic dihydrogen evolution reaction (HER) occurs, similarly to analogous [(μ-S2)Fe2(CO)6] complexes. However, in the presence of air, the TTF and exTTF organic moieties strongly influence the electrochemistry of these systems. The reported data may be valuable in the design of [FeFe] hydrogenase mimics able to combine the HER properties of the [FeFe] cores with the unique TTF properties.
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Affiliation(s)
- Alejandro Torres
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Alba Collado
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Carmen Ramírez de Arellano
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Departamento
de Química Orgánica, Universidad
de Valencia, 46100 Valencia, Spain
| | - Miguel A. Sierra
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Email for M.A.S.:
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13
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Buil ML, Collado A, Esteruelas MA, Gómez-Gallego M, Izquierdo S, Nicasio AI, Oñate E, Sierra MA. Preparation and Degradation of Rhodium and Iridium Diolefin Catalysts for the Acceptorless and Base-Free Dehydrogenation of Secondary Alcohols. Organometallics 2021; 40:989-1003. [PMID: 35692372 PMCID: PMC9180741 DOI: 10.1021/acs.organomet.1c00068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 02/04/2021] [Indexed: 01/21/2023]
Abstract
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Rhodium
and iridium diolefin catalysts for the acceptorless and
base-free dehydrogenation of secondary alcohols have been prepared,
and their degradation has been investigated, during the study of the
reactivity of the dimers [M(μ-Cl)(η4-C8H12)]2 (M = Rh (1), Ir
(2)) and [M(μ-OH)(η4-C8H12)]2 (M = Rh (3), Ir (4)) with 1,3-bis(6′-methyl-2′-pyridylimino)isoindoline
(HBMePHI). Complex 1 reacts with HBMePHI, in dichloromethane,
to afford equilibrium mixtures of 1, the mononuclear
derivative RhCl(η4-C8H12){κ1-Npy-(HBMePHI)} (5), and the binuclear species [RhCl(η4-C8H12)]2{μ-Npy,Npy-(HBMePHI)} (6). Under
the same conditions, complex 2 affords the iridium counterparts
IrCl(η4-C8H12){κ1-Npy-(HBMePHI)} (7) and [IrCl(η4-C8H12)]2{μ-Npy,Npy-(HBMePHI)} (8). In contrast to chloride,
one of the hydroxide groups of 3 and 4 promotes
the deprotonation of HBMePHI to give [M(η4-C8H12)]2(μ-OH){μ-Npy,Niso-(BMePHI)} (M = Rh
(9), Ir (10)), which are efficient precatalysts
for the acceptorless and base-free dehydrogenation of secondary alcohols.
In the presence of KOtBu, the [BMePHI]− ligand undergoes three different degradations: alcoholysis
of an exocyclic isoindoline-N double bond, alcoholysis of a pyridyl-N
bond, and opening of the five-membered ring of the isoindoline core.
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Affiliation(s)
- María L. Buil
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Alba Collado
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Susana Izquierdo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Antonio I. Nicasio
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
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14
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Abstract
The role of deuterium in disentangling key steps of the mechanisms of H2 activation by mimics of hydrogenases is presented. These studies have allowed to a better understanding of the mode of action of the natural enzymes and their mimics.
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Affiliation(s)
- Mar Gómez-Gallego
- Departamento de Química Orgánica I and Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Facultad de Química
- Universidad Complutense
- 28040-Madrid
- Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica I and Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Facultad de Química
- Universidad Complutense
- 28040-Madrid
- Spain
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15
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Avello MG, de la Torre MC, Guerrero‐Martínez A, Sierra MA, Gornitzka H, Hemmert C. Chiral‐at‐Metal BODIPY‐Based Iridium(III) Complexes: Synthesis and Luminescence Properties. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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)
- Marta G. Avello
- Consejo Superior de Investigaciones Científicas (IQOG‐CSIC) Instituto de Química Orgánica General Juan de la Cierva 3 28006 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
| | - María C. de la Torre
- Consejo Superior de Investigaciones Científicas (IQOG‐CSIC) Instituto de Química Orgánica General Juan de la Cierva 3 28006 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
| | | | - Miguel A. Sierra
- Departamento de Química Orgánica I Facultad de Química Universidad Complutense 28040 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
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16
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Collado A, Torres A, Gómez‐Gallego M, Casarrubios L, Sierra MA. A Model for the Prediction of the Redox Potentials in [FeFe]‐Clusters from the Electronic Properties of Isocyanide Ligands. ChemistrySelect 2020. [DOI: 10.1002/slct.202001820] [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: 11/12/2022]
Affiliation(s)
- Alba Collado
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Alejandro Torres
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Mar Gómez‐Gallego
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
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17
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Valencia M, Merinero AD, Lorenzo-Aparicio C, Gómez-Gallego M, Sierra MA, Eguillor B, Esteruelas MA, Oliván M, Oñate E. Osmium-Promoted σ-Bond Activation Reactions on Nucleosides. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00693] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Marta Valencia
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Alba D. Merinero
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Carmen Lorenzo-Aparicio
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica I, Facultad de CC. Químicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Beatriz Eguillor
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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18
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Aguado S, Casarrubios L, Ramírez de Arellano C, Sierra MA. Revisiting the photochemical synthesis of [FeFe]-hydrogenase mimics: reaction optimization, mechanistic study and electrochemical behaviour. RSC Adv 2020; 10:29855-29867. [PMID: 35518225 PMCID: PMC9056276 DOI: 10.1039/d0ra06002j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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] [Received: 07/09/2020] [Accepted: 07/31/2020] [Indexed: 02/05/2023] Open
Abstract
The photoreaction of [(μ-S)2Fe2(CO)6] and alkenes or alkynes has been optimized to readily obtain functionalized [FeFe]-hydrogenase mimics. Irradiation under low CO pressure in THF produces the corresponding photo-adducts in good/acceptable (alkenes/alkynes) yields, with retention of the starting olefin stereochemistry. DFT-calculations provide plausible reaction pathways in both, singlet and triplet states. The DFT-calculation based in the singlet state is energetically more favorable. The electrochemical behavior of the synthesized compounds is also presented, including studies in acidic media. The electrochemical properties of the products vary in the presence of a double bond (cycloaddition of [(μ-S)2Fe2(CO)6] to alkynes), respect to a single bond (cycloaddition to alkenes). The photochemistry of [(μ-S)2Fe2(CO)6] and alkenes or alkynes has been developed to a synthetically useful level. Computational data and electrochemistry of the photoadducts show interesting properties of these compounds.![]()
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Affiliation(s)
- Sergio Aguado
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA)
- Universidad Complutense
- 28040-Madrid
| | - Luis Casarrubios
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA)
- Universidad Complutense
- 28040-Madrid
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA)
- Universidad de Valencia
- 46100-Valencia
- Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA)
- Universidad Complutense
- 28040-Madrid
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19
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Sierra MA, Sánchez D, Gutierrez R, Cuniberti G, Domínguez-Adame F, Díaz E. Spin-Polarized Electron Transmission in DNA-Like Systems. Biomolecules 2019; 10:E49. [PMID: 31905610 PMCID: PMC7022823 DOI: 10.3390/biom10010049] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 01/29/2023] Open
Abstract
The helical distribution of the electronic density in chiral molecules, such as DNA and bacteriorhodopsin, has been suggested to induce a spin-orbit coupling interaction that may lead to the so-called chirality-induced spin selectivity (CISS) effect. Key ingredients for the theoretical modelling are, in this context, the helically shaped potential of the molecule and, concomitantly, a Rashba-like spin-orbit coupling due to the appearance of a magnetic field in the electron reference frame. Symmetries of these models clearly play a crucial role in explaining the observed effect, but a thorough analysis has been largely ignored in the literature. In this work, we present a study of these symmetries and how they can be exploited to enhance chiral-induced spin selectivity in helical molecular systems.
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Affiliation(s)
- Miguel A. Sierra
- Institute for Cross-Disciplinary Physics and Complex Systems IFISC (UIB-CSIC), E-07122 Palma de Mallorca, Spain; (M.A.S.); (D.S.)
- Institut für Theoretische Physik (TP4) and Würzburg-Dresden Cluster of Excellence ct.qmat, Universität Würzburg, 97074 Würzburg, Germany
| | - David Sánchez
- Institute for Cross-Disciplinary Physics and Complex Systems IFISC (UIB-CSIC), E-07122 Palma de Mallorca, Spain; (M.A.S.); (D.S.)
| | - Rafael Gutierrez
- Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany; (R.G.); (G.C.)
| | - Gianaurelio Cuniberti
- Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany; (R.G.); (G.C.)
- Dresden Center for Computational Materials Science, TU Dresden, 01062 Dresden, Germany
- Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany
| | | | - Elena Díaz
- GISC, Departamento de Física de Materiales, Universidad Complutense, E-28040 Madrid, Spain
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20
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Merinero AD, Collado A, Casarrubios L, Gómez-Gallego M, Ramírez de Arellano C, Caballero A, Zapata F, Sierra MA. Triazole-Containing [FeFe] Hydrogenase Mimics: Synthesis and Electrocatalytic Behavior. Inorg Chem 2019; 58:16267-16278. [DOI: 10.1021/acs.inorgchem.9b02813] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alba D. Merinero
- Departamento de Química Orgánica I, Facultad de Química, and Center for Innovation in Advanced Chemistry (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Alba Collado
- Departamento de Química Orgánica I, Facultad de Química, and Center for Innovation in Advanced Chemistry (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica I, Facultad de Química, and Center for Innovation in Advanced Chemistry (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica I, Facultad de Química, and Center for Innovation in Advanced Chemistry (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica and Center for Innovation in Advanced Chemistry (ORFEO−CINQA), Universidad de Valencia, 46100 Valencia, Spain
| | - Antonio Caballero
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
| | - Fabiola Zapata
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica I, Facultad de Química, and Center for Innovation in Advanced Chemistry (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
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21
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Avello MG, Torre MC, Sierra MA, Gornitzka H, Hemmert C. Central (S) to Central (M=Ir, Rh) to Planar (Metallocene, M=Fe, Ru) Chirality Transfer Using Sulfoxide‐Substituted Mesoionic Carbene Ligands: Synthesis of Bimetallic Planar Chiral Metallocenes. Chemistry 2019; 25:13344-13353. [DOI: 10.1002/chem.201902102] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/24/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Marta G. Avello
- Instituto de Química Orgánica General Consejo Superior de Investigaciones Científicas (IQOG-CSIC) Juan de la Cierva 3 28006 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO-CINQA) Universidad Complutense 28040 Madrid Spain
| | - María C. Torre
- Instituto de Química Orgánica General Consejo Superior de Investigaciones Científicas (IQOG-CSIC) Juan de la Cierva 3 28006 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO-CINQA) Universidad Complutense 28040 Madrid Spain
| | - Miguel A. Sierra
- Centro de Investigación en Química Avanzada (ORFEO-CINQA) Universidad Complutense 28040 Madrid Spain
- Departamento de Química Orgánica I Facultad de Química Universidad Complutense 28040 Madrid Spain
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22
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Sierra MA, de la Torre MC. 1,2,3-Triazolium-Derived Mesoionic Carbene Ligands Bearing Chiral Sulfur-Based Moieties: Synthesis, Catalytic Properties, and Their Role in Chirality Transfer. ACS Omega 2019; 4:12983-12994. [PMID: 31460425 PMCID: PMC6705200 DOI: 10.1021/acsomega.9b01285] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
1,2,3-Triazole-derived mesoionic carbenes (MICs) having a chiral sulfur functional group at the C5 position are easily available through a CuAAC between chiral alkynyl sulfoxides and different azides. The MICs form complexes with several metals (Au, Ag, Ir, Rh, and Ru) that are enantiomerically pure. Moreover, enantiomerically pure MIC sulfinilimines are obtained from the corresponding sulfoxide retaining the chirality. Through this article, the participation of sulfoxide moieties in different catalytic and chirality transfer processes, as well as in discovering mechanistically new processes will be shown. The role of the sulfur chiral moiety in catalytic cycloisomerization and cycloisomerization-dimerization processes using Au-MIC catalysts is dual. The sulfur functional group either stabilizes intermediates in the catalytic cycle, allowing for the reaction to occur or significantly increases the selectivity of the cyclization processes. 1,2,3-Triazole MICs having chiral sulfoxides at C5 are extremely efficient in preparing chiral at the metal complexes by C-H insertion processes. The chiral at the metal half-sandwich complexes, having the enantiopure sulfur chiral group unaltered, experiences different reactions with complete retention of the configuration. Finally, mechanistically new processes, like the desulfinilation of 1,2,3-triazolium salts in Ag-MIC complexes have been uncovered. These still-nascent classes of compounds will offer opportunities for the discovery of novel catalytic applications and to study new mechanistically sound processes.
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Affiliation(s)
- Miguel A. Sierra
- Dpto.
de Química Orgánica, Facultad de Química, and
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - María C. de la Torre
- Instituto
de Química Orgánica General, and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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23
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Sierra MA, Casarrubios L, de la Torre MC. Frontispiece: Bio‐Organometallic Derivatives of Antibacterial Drugs. Chemistry 2019. [DOI: 10.1002/chem.201983061] [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: 11/06/2022]
Affiliation(s)
- Miguel A. Sierra
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad Complutense 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Luis Casarrubios
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad Complutense 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - María C. de la Torre
- Consejo Superior de Investigaciones Científicas (CSIC)Instituto de Química Orgánica General Juan de la Cierva 3 28006 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
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24
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Cabeza JA, García‐Álvarez P, Gómez‐Gallego M, González‐Álvarez L, Merinero AD, Sierra MA. Two Types of σ‐Allenyl Complexes from Reactions of Silylenes and Germylenes with Chromium Fischer Alkynyl(alkoxy)carbenes. Chemistry 2019; 25:8635-8642. [DOI: 10.1002/chem.201901579] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo 33071 Oviedo Spain
| | - Pablo García‐Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo 33071 Oviedo Spain
| | - Mar Gómez‐Gallego
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química OrgánicaUniversidad Complutense 28040 Madrid Spain
| | - Laura González‐Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo 33071 Oviedo Spain
| | - Alba D. Merinero
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química OrgánicaUniversidad Complutense 28040 Madrid Spain
| | - Miguel A. Sierra
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química OrgánicaUniversidad Complutense 28040 Madrid Spain
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25
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Abstract
Overuse and misuse of antibacterial drugs has resulted in bacteria resistance and in an increase in mortality rates due to bacterial infections. Therefore, there is an imperative necessity of new antibacterial drugs. Bio-organometallic derivatives of antibacterial agents offer an opportunity to discover new active antibacterial drugs. These compounds are well-characterized products and, in several examples, their antibacterial activities have been studied. Both inhibition of the antibacterial activity and strong increase in the antibiotic activity of the parent drug have been found. The synthesis of the main classes of bio-organometallic derivatives of these drugs, as well as examples of the use of structure-activity relation (SAR) studies to increase the activity and to understand the mode of action of bio-organometallic antimicrobial peptides (BOAMPs) and platensimicyn bio-organometallic mimics is presented in this article.
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Affiliation(s)
- Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - María C de la Torre
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Química Orgánica General, Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
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26
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Collado A, Gómez‐Gallego M, Santiago A, Sierra MA. Understanding the Reactivity of Group 6 Metal (M = Cr, W) Alkynyl Fischer Carbene Complexes with Multi‐Reactive Masked Dienes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201800453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alba Collado
- Departamento de Química Orgánica I Facultad de Química Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
| | - Mar Gómez‐Gallego
- Departamento de Química Orgánica I Facultad de Química Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
| | - Alicia Santiago
- Departamento de Química Orgánica I Facultad de Química Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica I Facultad de Química Centro de Investigación en Química Avanzada (ORFEO‐CINQA) Universidad Complutense 28040 Madrid Spain
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27
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Cabeza JA, García-Álvarez P, Gómez-Gallego M, González-Álvarez L, Merinero AD, Sierra MA. Unexpected Zwitterionic Allenyls from Silylenes and a Fischer Alkynylcarbene: A Remarkable Silylene-Promoted Rearrangement. Chemistry 2019; 25:2222-2225. [DOI: 10.1002/chem.201806275] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Mar Gómez-Gallego
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica; Universidad Complutense; 28040 Madrid Spain
| | - Laura González-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Alba D. Merinero
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica; Universidad Complutense; 28040 Madrid Spain
| | - Miguel A. Sierra
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica; Universidad Complutense; 28040 Madrid Spain
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28
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Álvarez-Rodríguez L, Cabeza JA, García-Álvarez P, Gómez-Gallego M, González-Álvarez L, Merinero AD, Sierra MA. Reversible Carbene Insertion into a Ge−N Bond and Insights into CO and Carbene Substitution Reactions Involving Amidinatogermylenes and Fischer Carbene Complexes. Chemistry 2018; 25:1588-1594. [DOI: 10.1002/chem.201805406] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Lucía Álvarez-Rodríguez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Mar Gómez-Gallego
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica; Universidad Complutense; 28040 Madrid Spain
| | - Laura González-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Alba D. Merinero
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica; Universidad Complutense; 28040 Madrid Spain
| | - Miguel A. Sierra
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica; Universidad Complutense; 28040 Madrid Spain
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29
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Gómez-Caballero E, Martínez-Álvarez R, Sierra MA. Unexpected Reaction Pathways Leading to Thiodiglycol During the Degradation of Long-Chain Sulfur Mustards. J Org Chem 2018; 83:12432-12439. [PMID: 30230837 DOI: 10.1021/acs.joc.8b01670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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
Degradation of long-chain sulfur mustards with various commercial decontaminants unexpectedly forms thiodiglycol (TDG) through unreported reaction pathways. Chemical warfare agents (CWAs) degradation products have to be unambiguously related to their reference compounds in order to fulfill international verification protocols. Thus, the formation of TDG using water-based decontaminants introduces an uncertainty in the origin of this chemical that has been systematically used to unambiguously demonstrate the presence of yperite in environmental and biomedical samples. Therefore, these novel and unprecedented degradation pathways will result either in modifications of the international verification protocols for forensic purposes or in the exclusion of TDG as an exclusive marker of yperite.
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Affiliation(s)
- Esther Gómez-Caballero
- Laboratorio de Verificación de Armas Químicas (LAVEMA) , Área de Defensa Química, Departamento NBQM, Subdirección General de Sistemas Terrestres, INTA-Campus La Marañosa , M-301, km 10.5 , 28330 Madrid , Spain
| | - Roberto Martínez-Álvarez
- Departamento de Química Orgánica, Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad Complutense , 28040 Madrid , Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad Complutense , 28040 Madrid , Spain
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30
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Sierra MA, López R, Lim JS. Thermally Driven Out-of-Equilibrium Two-Impurity Kondo System. Phys Rev Lett 2018; 121:096801. [PMID: 30230870 DOI: 10.1103/physrevlett.121.096801] [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] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Indexed: 06/08/2023]
Abstract
The archetypal two-impurity Kondo problem in a serially coupled double quantum dot is investigated in the presence of a thermal bias θ. The slave-boson formulation is employed to obtain the nonlinear thermal and thermoelectrical responses. When the Kondo correlations prevail over the antiferromagnetic coupling J between dot spins, we demonstrate that the setup shows negative differential thermal conductance regions behaving as a thermal diode. In addition, we report a sign reversal of the thermoelectric current I(θ) controlled by t/Γ (t and Γ denote the interdot tunnel and reservoir-dot tunnel couplings, respectively) and θ. All these features are attributed to the fact that at large θ both Q(θ) (heat current) and I(θ) are suppressed regardless of the value of t/Γ because the double dot decouples at high thermal biases. Finally, for a finite J, we investigate how the Kondo-to-antiferromagnetic crossover is altered by θ.
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Affiliation(s)
- Miguel A Sierra
- Institut de Física Interdisciplinària i de Sistemes Complexos IFISC (CSIC-UIB), E-07122 Palma de Mallorca, Spain
| | - Rosa López
- Institut de Física Interdisciplinària i de Sistemes Complexos IFISC (CSIC-UIB), E-07122 Palma de Mallorca, Spain
| | - Jong Soo Lim
- School of Physics, Korea Institute for Advanced Study, Seoul 130-722, Korea
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31
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Affiliation(s)
- Alba Collado
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
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32
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Sierra MA, Sánchez D, Garrigues AR, Del Barco E, Wang L, Nijhuis CA. How to distinguish between interacting and noninteracting molecules in tunnel junctions. Nanoscale 2018; 10:3904-3910. [PMID: 29423488 DOI: 10.1039/c7nr05739c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Recent experiments demonstrate a temperature control of the electric conduction through a ferrocene-based molecular junction. Here we examine the results in view of determining means to distinguish between transport through single-particle molecular levels or via transport channels split by Coulomb repulsion. Both transport mechanisms are similar in molecular junctions given the similarities between molecular intralevel energies and the charging energy. We propose an experimentally testable way to identify the main transport process. By applying a magnetic field to the molecule, we observe that an interacting theory predicts a shift of the conductance resonances of the molecule whereas in the noninteracting case each resonance is split into two peaks. The interaction model works well in explaining our experimental results obtained in a ferrocene-based single-molecule junction, where the charge degeneracy peaks shift (but do not split) under the action of an applied 7-Tesla magnetic field. This method is useful for a proper characterization of the transport properties of molecular tunnel junctions.
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Affiliation(s)
- Miguel A Sierra
- Institute for Cross-Disciplinary Physics and Complex Systems IFISC (UIB-CSIC), Palma de Mallorca, Spain.
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33
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Buil ML, Esteruelas MA, Gay MP, Gómez-Gallego M, Nicasio AI, Oñate E, Santiago A, Sierra MA. Osmium Catalysts for Acceptorless and Base-Free Dehydrogenation of Alcohols and Amines: Unusual Coordination Modes of a BPI Anion. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00906] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- María L. Buil
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - M. Pilar Gay
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Mar Gómez-Gallego
- Departamento
de Química Orgánica I, Facultad de CC. Químicas,
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Antonio I. Nicasio
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Alicia Santiago
- Departamento
de Química Orgánica I, Facultad de CC. Químicas,
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Miguel A. Sierra
- Departamento
de Química Orgánica I, Facultad de CC. Químicas,
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
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34
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Frutos M, Gómez-Gallego M, Giner EA, Sierra MA, Ramírez de Arellano C. Triazole vs. triazolium carbene ligands in the site-selective cyclometallation of o-carboranes by M(iii) (M = Ir, Rh) complexes. Dalton Trans 2018; 47:9975-9979. [DOI: 10.1039/c8dt02296h] [Citation(s) in RCA: 11] [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: 12/13/2022]
Abstract
M(iii)-mediated (M = Ir, Rh) site-selective cage B–H and C–H bond activation in o-carboranylmethyl derivatives has been achieved by switching the electron donating properties of the 1,2,3-triazole ligand.
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Affiliation(s)
- María Frutos
- Departamento de Química Orgánica
- Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica
- Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Elena A. Giner
- Departamento de Química Orgánica
- Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica
- Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica Facultad de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Valencia
- 46100-Valencia
- Spain
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35
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Avello MG, Frutos M, de la Torre MC, Viso A, Velado M, de la Pradilla RF, Sierra MA, Gornitzka H, Hemmert C. Chiral Sulfur Functional Groups as Definers of the Chirality at the Metal in Ir and Rh Half-Sandwich Complexes: A Combined CD/X-ray Study. Chemistry 2017; 23:14523-14531. [PMID: 28749583 DOI: 10.1002/chem.201702662] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 06/09/2017] [Revised: 07/10/2017] [Indexed: 01/14/2023]
Abstract
Mesoionic carbenes (MICs) derived from triazolium salts that contain chiral sulfoxide or sulfoximine functional groups were used to construct enantiopure chiral-at-metal IrIII and RhIII half-sandwich complexes through the synthetic sequence of MIC complexation/C-H aromatic activation. The process was efficient and diastereoselective for the formation of enantiopure five-membered metallacycles. The use of the enantiomers of the chiral sulfur groups allowed us to prepare complexes that had opposite configurations at the metal center. Complete retention of the configuration at the metal center was observed during the formation of cationic IrIII complexes and upon insertion of alkynes into the IrIII -C bond, as demonstrated by a combined circular dichroism/X-ray study. These results point to a vicinal-assisted SN 1-like mechanism.
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Affiliation(s)
- Marta G Avello
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - María Frutos
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - María C de la Torre
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - Alma Viso
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - Marina Velado
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Roberto Fernández de la Pradilla
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
| | - Heinz Gornitzka
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, F-, 31077, Toulouse Cedex 4, France
| | - Catherine Hemmert
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, F-, 31077, Toulouse Cedex 4, France
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36
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Álvarez-Pérez M, Frutos M, Viso A, Fernández de la Pradilla R, de la Torre MC, Sierra MA, Gornitzka H, Hemmert C. Gold(I)-Catalyzed Cycloisomerization-Dimerization Cascade of Benzene-Tethered 1,6-Enynes. J Org Chem 2017. [PMID: 28650170 DOI: 10.1021/acs.joc.7b01273] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
An unprecedented stereoselective domino reaction of 1,6-enynes with an aryl ring at C3-C4 in the presence of gold(I) catalysts at low temperature is described. This process involves a novel 5-exo-dig cycloisomerization-dimerization sequence to afford formal Diels-Alder adducts that undergo a smooth gold-catalyzed double bond migration at room temperature. In addition, the first examples of the gold mesoionic carbene mediated [2+2+2] cycloaddition of these enynes with benzaldehyde are reported.
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Affiliation(s)
- Mónica Álvarez-Pérez
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC) , Juan de la Cierva 3, 28006 Madrid, Spain
| | - María Frutos
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC) , Juan de la Cierva 3, 28006 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense , 28040 Madrid, Spain
| | - Alma Viso
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC) , Juan de la Cierva 3, 28006 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense , 28040 Madrid, Spain
| | - Roberto Fernández de la Pradilla
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC) , Juan de la Cierva 3, 28006 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense , 28040 Madrid, Spain
| | - María C de la Torre
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC) , Juan de la Cierva 3, 28006 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense , 28040 Madrid, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense , 28040 Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad Complutense , 28040 Madrid, Spain
| | - Heinz Gornitzka
- CNRS, LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT , F-31077 Toulouse Cedex 4, France
| | - Catherine Hemmert
- CNRS, LCC (Laboratoire de Chimie de Coordination) , 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT , F-31077 Toulouse Cedex 4, France
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37
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Giner EA, Gómez-Gallego M, Merinero AD, Casarrubios L, Ramírez de Arellano C, Sierra MA. Sequential Reactions of Alkynes on an Iridium(III) Single Site. Chemistry 2017; 23:8941-8948. [PMID: 28440592 DOI: 10.1002/chem.201701100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Indexed: 01/01/2023]
Abstract
Sequential insertion of terminal alkynes on IrIII cyclometalated complexes allow the formation of novel metallapolycycles in a controlled and efficient manner. ortho-Methylarylethynyl derivatives led to an unprecedented cascade combination of three fundamental processes (C-C bond formation, C(sp3 )-H activation, and reductive coupling) on a single IrIII center, in a process compatible with functionalized biomolecules and photoactive substrates. The reaction with tert-butylacetylene led to a [6,5,4]-polycycle that incorporates an iridacyclobutenylidene in its structure. The sequence is a multicomponent reaction in which the metal not only promotes the different steps but also determines their stereoselectivity. This is an elegant example of the synergy between a metal-promoting reaction and a symmetry-defined stereochemistry.
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Affiliation(s)
- Elena A Giner
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universidad Complutense., 28040, Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universidad Complutense., 28040, Madrid, Spain
| | - Alba D Merinero
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universidad Complutense., 28040, Madrid, Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universidad Complutense., 28040, Madrid, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica, Facultad de Química, Universidad de Valencia, 46100, Valencia, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universidad Complutense., 28040, Madrid, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universidad Complutense., 28040, Madrid, Spain
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38
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Álvarez-Rodríguez L, Cabeza JA, García-Álvarez P, Gómez-Gallego M, Merinero AD, Sierra MA. First Insertions of Carbene Ligands into Ge-N and Si-N Bonds. Chemistry 2017; 23:4287-4291. [PMID: 28225557 DOI: 10.1002/chem.201700828] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 02/21/2017] [Indexed: 11/10/2022]
Abstract
The insertion of carbene ligands into Ge-N (three examples) and Si-N (one example) bonds has been achieved for the first time by treating Fischer carbene complexes (M=W, Cr) with bulky amidinatotetrylenes (E=Ge, Si). These reactions, which start with a nucleophilic attack of the amidinatotetrylene heavier group 14 atom to the carbene C atom, proceed through a stereoselective insertion of the carbene fragment into an E-N bond of the amidinatotetrylene ENCN four-membered ring, leading to [M(CO)5 L] derivatives in which L belongs to a novel family of tetrylene ligands comprising an ECNCN five-membered ring.
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Affiliation(s)
- Lucía Álvarez-Rodríguez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, 33071, Oviedo, Spain
| | - Javier A Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, 33071, Oviedo, Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, 33071, Oviedo, Spain
| | - Mar Gómez-Gallego
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica, Universidad Complutense, 28040, Madrid, Spain
| | - Alba D Merinero
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica, Universidad Complutense, 28040, Madrid, Spain
| | - Miguel A Sierra
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Spain.,Departamento de Química Orgánica, Universidad Complutense, 28040, Madrid, Spain
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39
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Álvarez-Pérez M, Velado M, García-Puentes D, Sáez E, Vicent C, Fernández de la Pradilla R, Viso A, de la Torre MC, Sierra MA. Sulfur Groups Improve the Performance of Triazole- and Triazolium-Based Interaction Units in Anion Binding. J Org Chem 2017; 82:3341-3346. [PMID: 28218535 DOI: 10.1021/acs.joc.7b00261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An NMR comparative study of 1,2,3-triazole and triazolium anion recognition units containing sulfoxide, sulfone, and sulfoximine groups at C4 unveils an enhancement in binding ability up to ≈1 kcal/mol in acetone-d6 correlated with a theoretical increase of H5 acidity. DFT calculations provide insight into binding modes in line with experimental data for these receptors.
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Affiliation(s)
- Mónica Álvarez-Pérez
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain
| | - Marina Velado
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain
| | - Diego García-Puentes
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain
| | - Elena Sáez
- CAI de RMN y RSE, Universidad Complutense , 28040-Madrid, Spain
| | - Cristina Vicent
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain
| | - Roberto Fernández de la Pradilla
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Madrid, Spain
| | - Alma Viso
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Madrid, Spain
| | - María C de la Torre
- Instituto de Química Orgánica General , Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006-Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Madrid, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense , 28040-Madrid, Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Madrid, Spain
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40
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Giner EA, Gómez-Gallego M, Casarrubios L, de la Torre MC, Ramírez de Arellano C, Sierra MA. Effect of a κ1-Bonded-M-1,2,3-triazole (M = Co, Ru) on the Structure and Reactivity of Group 6 Alkoxy (Fischer) Carbenes. Inorg Chem 2017; 56:2801-2811. [DOI: 10.1021/acs.inorgchem.6b02957] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elena A. Giner
- Departamento de
Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), 28040 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento de
Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), 28040 Madrid, Spain
| | - Luis Casarrubios
- Departamento de
Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), 28040 Madrid, Spain
| | - María C. de la Torre
- Instituto de Química Orgánica General, Consejo Superior
de Investigaciones Científicas (CSIC) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Carmen Ramírez de Arellano
- Departamento de
Química Orgánica, Universidad de Valencia and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), E-46100, Valencia, Spain
| | - Miguel A. Sierra
- Departamento de
Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), 28040 Madrid, Spain
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41
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Frutos M, Ortuño MA, Lledos A, Viso A, Fernández de la Pradilla R, de la Torre MC, Sierra MA, Gornitzka H, Hemmert C. Desulfinylation of Ag(I) Sulfinyl Mesoionic Carbenes: Preparation of C-Unsubstituted Au(I)–1,2,3-Triazole Carbene Complexes. Org Lett 2017; 19:822-825. [DOI: 10.1021/acs.orglett.6b03808] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María Frutos
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Manuel A. Ortuño
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Agustí Lledos
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Alma Viso
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Roberto Fernández de la Pradilla
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - María C. de la Torre
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Miguel A. Sierra
- Departmento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Universidad Complutense, 28040 Madrid, Spain
| | - Heinz Gornitzka
- CNRS, LCC (Laboratoire
de Chimie de Coordination), 205 route
de Narbonne, BP 44099, ToulouseF-31077 Cedex 4, France
- Université de Toulouse, UPS, INPT, Toulouse F-31077 Cedex 4, France
| | - Catherine Hemmert
- CNRS, LCC (Laboratoire
de Chimie de Coordination), 205 route
de Narbonne, BP 44099, ToulouseF-31077 Cedex 4, France
- Université de Toulouse, UPS, INPT, Toulouse F-31077 Cedex 4, France
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43
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Valderas C, Marzo L, de la Torre MC, García Ruano JL, Alemán J, Casarrubios L, Sierra MA. Mono- and Bimetallic Alkynyl Metallocenes and Half-Sandwich Complexes: A Simple and Versatile Synthetic Approach. Chemistry 2016; 22:15645-15649. [DOI: 10.1002/chem.201603462] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/09/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Carolina Valderas
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Instituto de Química Orgánica General; Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3; 28006 Madrid Spain
| | - Leyre Marzo
- Organic Chemistry Department; Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - María C. de la Torre
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
- Instituto de Química Orgánica General; Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3; 28006 Madrid Spain
| | | | - José Alemán
- Organic Chemistry Department; Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA); Spain
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44
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Picazas-Márquez N, Sierra M, Nova C, Moreno JM, Aboitiz N, de Rivas G, Sierra MA, Martínez-Álvarez R, Gómez-Caballero E. GC-MS Study of Mono- and Bishaloethylphosphonates Related to Schedule 2.B.04 of the Chemical Weapons Convention: The Discovery of a New Intramolecular Halogen Transfer. J Am Soc Mass Spectrom 2016; 27:1510-1519. [PMID: 27300717 DOI: 10.1007/s13361-016-1430-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 05/19/2016] [Accepted: 05/24/2016] [Indexed: 06/06/2023]
Abstract
A new class of compounds, mono- and bis-haloethylphosphonates (HAPs and bisHAPs, respectively), listed in Schedule 2.B.04 of the Chemical Weapons Convention (CWC), has been synthesized and studied by GC-MS with two aims. First, to improve the identification of this type of chemicals by the Organization for the Prohibition of Chemical Weapons, (OPCW). Second, to study the synergistic effect of halogen and silicon atoms in molecules undergoing mass spectrometry. Fragmentation patterns of trimethylsilyl derivatives of HAPs were found to depend on the nature of the halogen atom; this was in agreement with DFT-calculations. The data suggest that a novel intramolecular halogen transfer takes place during the fragmentation process. Graphical Abstract ᅟ.
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Affiliation(s)
- Nerea Picazas-Márquez
- Ingeniería de Sistemas para la Defensa de España (ISDEFE), Beatriz de Bobadilla 3, E-28040, Madrid, Spain
| | - María Sierra
- Ingeniería de Sistemas para la Defensa de España (ISDEFE), Beatriz de Bobadilla 3, E-28040, Madrid, Spain
| | - Clara Nova
- Ingeniería de Sistemas para la Defensa de España (ISDEFE), Beatriz de Bobadilla 3, E-28040, Madrid, Spain
| | - Juan Manuel Moreno
- Laboratorio de Verificación de Armas Químicas (LAVEMA), Área de Defensa Química, Subdirección General de Sistemas Terrestres, INTA, Campus La Marañosa, San Martín de la Vega, E-28330, Madrid, Spain
| | - Nuria Aboitiz
- Ingeniería de Sistemas para la Defensa de España (ISDEFE), Beatriz de Bobadilla 3, E-28040, Madrid, Spain
| | - Gema de Rivas
- Laboratorio de Verificación de Armas Químicas (LAVEMA), Área de Defensa Química, Subdirección General de Sistemas Terrestres, INTA, Campus La Marañosa, San Martín de la Vega, E-28330, Madrid, Spain
| | - Miguel A Sierra
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, E-28040, Madrid, Spain
| | - Roberto Martínez-Álvarez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, E-28040, Madrid, Spain.
| | - Esther Gómez-Caballero
- Laboratorio de Verificación de Armas Químicas (LAVEMA), Área de Defensa Química, Subdirección General de Sistemas Terrestres, INTA, Campus La Marañosa, San Martín de la Vega, E-28330, Madrid, Spain
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45
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Sierra E, Espinosa de Los Monteros A, Fernández A, Díaz-Delgado J, Suárez-Santana C, Arbelo M, Sierra MA, Herráez P. Muscle Pathology in Free-Ranging Stranded Cetaceans. Vet Pathol 2016; 54:298-311. [PMID: 27538973 DOI: 10.1177/0300985816660747] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Despite the profound impact that skeletal muscle disorders may pose for the daily activities of wild terrestrial and marine mammals, such conditions have been rarely described in cetaceans. In this study, the authors aimed to determine the nature and prevalence of skeletal muscle lesions in small and large odontocetes and mysticetes ( n = 153) from 19 different species. A macroscopic evaluation of the epaxial muscle mass and a histologic examination of the longissimus dorsi muscle were performed in all cases. The only macroscopically evident change was variable degrees of atrophy of the epaxial muscles ( longissimus dorsi, multifidus, spinalis) in emaciated specimens. The histopathological study revealed single or combined morphological changes in 91.5% of the cases. These changes included the following: degenerative lesions (75.2%), muscle atrophy (37.9%), chronic myopathic changes (25.5%), parasitic infestation (9.2%), and myositis (1.9%). The skeletal muscle is easily sampled during a necropsy and provides essential microscopic information that reflects both local and systemic conditions. Thus, skeletal muscle should be systematically sampled, processed, and examined in all stranded cetaceans.
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Affiliation(s)
- E Sierra
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - A Espinosa de Los Monteros
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - A Fernández
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - J Díaz-Delgado
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - C Suárez-Santana
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - M Arbelo
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - M A Sierra
- 2 Department of Anatomy and Comparative Pathology, Veterinary Faculty, University of Córdoba, Córdoba, Spain
| | - P Herráez
- 1 Department of Veterinary Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
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46
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Sierra MA, Merinero AD, Giner EA, Gómez-Gallego M, Ramírez de Arellano C. An Entry to Mixed NHC-Fischer Carbene Complexes and Zwitterionic Group 6 Metal Alkenyls. Chemistry 2016; 22:13521-31. [DOI: 10.1002/chem.201601735] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Miguel A. Sierra
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Alba D. Merinero
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Elena A. Giner
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica; Universidad de Valencia; 46100 Valencia Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
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47
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Frutos M, Avello MG, Viso A, Fernández de la Pradilla R, de la Torre MC, Sierra MA, Gornitzka H, Hemmert C. Gold Sulfinyl Mesoionic Carbenes: Synthesis, Structure, and Catalytic Activity. Org Lett 2016; 18:3570-3. [DOI: 10.1021/acs.orglett.6b01555] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- María Frutos
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA)
| | - Marta G. Avello
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA)
| | - Alma Viso
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA)
| | - Roberto Fernández de la Pradilla
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA)
| | - María C. de la Torre
- Instituto
de Química Orgánica General, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA)
| | - Miguel A. Sierra
- Departmento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada (ORFEO−CINQA)
| | - Heinz Gornitzka
- CNRS, LCC (Laboratoire de
Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077
Cedex 4 Toulouse, France
- Université de Toulouse, UPS, INPT, F-31077 Cedex 4 Toulouse, France
| | - Catherine Hemmert
- CNRS, LCC (Laboratoire de
Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077
Cedex 4 Toulouse, France
- Université de Toulouse, UPS, INPT, F-31077 Cedex 4 Toulouse, France
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Valderas C, Casarrubios L, Lledos A, Ortuño MA, de la Torre MC, Sierra MA. Silver(I)-Catalyzed Addition of Phenols to Alkyne Cobalt Cluster Stabilized Carbocations. Chemistry 2016; 22:9015-23. [DOI: 10.1002/chem.201600288] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Carolina Valderas
- Departamento de Química Orgánica I; Facultad de Química; Universidad Complutense; 28040 Madrid Spain
- Instituto de Química Orgánica General; Instituto de Química Orgánica; Consejo Superior de Investigaciones Científicas (CSIC); Juan de la Cierva 3 28006 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Luis Casarrubios
- Departamento de Química Orgánica I; Facultad de Química; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Agusti Lledos
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallès Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Manuel A. Ortuño
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallès Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - María C. de la Torre
- Instituto de Química Orgánica General; Instituto de Química Orgánica; Consejo Superior de Investigaciones Científicas (CSIC); Juan de la Cierva 3 28006 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Miguel A. Sierra
- Departamento de Química Orgánica I; Facultad de Química; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
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Chu GM, Guerrero-Martínez A, Ramírez de Arellano C, Fernández I, Sierra MA. Remote Control by π-Conjugation of the Emissive Properties of Fischer Carbene-BODIPY Dyads. Inorg Chem 2016; 55:2737-47. [DOI: 10.1021/acs.inorgchem.5b02448] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gong M. Chu
- Departamento de Química Orgánica
I and Centro de Innovación en Química Avanzada (ORFEO-CINQA),
Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Andrés Guerrero-Martínez
- Departamento de Química
Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | | | - Israel Fernández
- Departamento de Química Orgánica
I and Centro de Innovación en Química Avanzada (ORFEO-CINQA),
Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica
I and Centro de Innovación en Química Avanzada (ORFEO-CINQA),
Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
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50
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Chu GM, Fernández I, Guerrero-Martínez A, Ramírez de Arellano C, Sierra MA. Fluorescence Quenching in BODIPYs Having Ir- and Rh-Tethered Complexes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501283] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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