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Sorption and Magnetic Properties of Oxalato-Based Trimetallic Open Framework Stabilized by Charge-Assisted Hydrogen Bonds. Int J Mol Sci 2022; 23:ijms23031556. [PMID: 35163480 PMCID: PMC8835875 DOI: 10.3390/ijms23031556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 11/26/2022] Open
Abstract
We report a new structure of {[Co(bpy)2(ox)][{Cu2(bpy)2(ox)}Fe(ox)3]}n·8.5nH2O NCU-1 presenting a rare ladder topology among oxalate-based coordination polymers with anionic chains composed of alternately arranged [Cu2(bpy)2(ox)]2+ and [Fe(ox)3]3− moieties. Along the a axis, they are separated by Co(III) units to give porous material with voids of 963.7 Å3 (16.9% of cell volume). The stability of this structure is assured by a network of stacking interactions and charge-assisted C-H…O hydrogen bonds formed between adjacent chains, adjacent cobalt(III) units, and alternately arranged cobalt(III) and chain motifs. The soaking experiment with acetonitrile and bromobenzene showed that water molecules (8.5 water molecules dispersed over 15 positions) are bonded tightly, despite partial occupancy. Water adsorption experiments are described by a D’arcy and Watt model being the sum of Langmuir and Dubinin–Serpinski isotherms. The amount of primary adsorption sites calculated from this model is equal 8.2 mol H2O/mol, being very close to the value obtained from the XRD experiments and indicates that water was adsorbed mainly on the primary sites. The antiferromagnetic properties could be only approximately described with the simple CuII-ox-CuII dimer using H = −J·S1·S2, thus, considering non-trivial topology of the whole Cu-Fe chain, we developed our own general approach, based on the semiclassical model (SC) and molecular field (MF) model, to describe precisely the magnetic superexchange interactions in NCU-1. We established that Cu(II)-Cu(II) coupling dominates over multiple Cu(II)-Fe(III) interactions, with JCuCu = −275(29) and JCuFe = −3.8(1.6) cm−1 and discussed the obtained values against the literature data.
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2
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Palacios-Corella M, García-López V, Sánchez-Sánchez C, Clemente-Juan JM, Clemente-León M, Coronado E. Insertion of single-ion magnets based on mononuclear Co(II) complexes into ferromagnetic oxalate-based networks. Dalton Trans 2021; 50:5931-5942. [PMID: 33949535 DOI: 10.1039/d1dt00595b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The 1 : 2 and 1 : 1 Co(ii) complexes of the L ligand (L = 6-(3,5-diamino-2,4,6-triazinyl)2,2'-bipyridine) with formulas [CoII(L)2](ClO4)2·0.5MeCN·Et2O (1) and [CoII(L)(CH3CN)2(H2O)](ClO4)2·MeCN (2) have been prepared. The structural and magnetic characterization of the two compounds shows that they contain octahedral high-spin Co(ii) and present a field-induced slow relaxation of the magnetization. 1 has been inserted into a bimetallic oxalate-based network leading to a novel achiral 3D compound of formula [CoII(L)2][MnIICrIII(ox)3]2·(solvate) (3) exhibiting ferromagnetic ordering below 4.6 K. EPR measurements suggest a weak magnetic coupling between the two sublattices.
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Affiliation(s)
- M Palacios-Corella
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - V García-López
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - C Sánchez-Sánchez
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - J M Clemente-Juan
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - M Clemente-León
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - E Coronado
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
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3
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Affiliation(s)
- Katsuya Inoue
- Chirality Research Center (CResCent), and Graduate School of Advanced Science and Engineering, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8524, Japan
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4
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Spitsyna N, Ovanesyan N, Blagov M, Krapivin V, Lobach A, Dmitriev A, Simonov S, Zorina L, Pilia L, Deplano P, Vasiliev A, Maximova O, Yagubskii E. Multi‐Magnetic Properties of a Novel SCO [Fe(3‐OMe‐Sal
2
trien)][Fe(tdas)
2
]·CH
3
CN Salt. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Nataliya Spitsyna
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
| | - Nikolay Ovanesyan
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
| | - Maxim Blagov
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
- Lomonosov Moscow State University 119991 Moscow Russia
| | - Vladimir Krapivin
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
| | - Anatolii Lobach
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
| | - Alexei Dmitriev
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
| | - Sergey Simonov
- Institute of Solid State Physics, RAS 142432 Chernogolovka MD Russia
| | - Leokadiya Zorina
- Institute of Solid State Physics, RAS 142432 Chernogolovka MD Russia
| | - Luca Pilia
- Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali Università di Cagliari via Marengo 2, I 09123 Cagliari Italy
| | - Paola Deplano
- Dipartimento di Fisica INSTM Research Unit University of Cagliari Monserrato 09042 Cagliari Italy
| | - Alexander Vasiliev
- Lomonosov Moscow State University 119991 Moscow Russia
- National Research South Ural State University 454080 Chelyabinsk Russia
| | - Olga Maximova
- Lomonosov Moscow State University 119991 Moscow Russia
- National University of Science and Technology "MISIS" 119991 Moscow Russia
| | - Eduard Yagubskii
- Institute of Problems of Chemical Physics, RAS 142432 Chernogolovka MD Russia
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5
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Spin Crossover in 3D Metal Centers Binding Halide-Containing Ligands: Magnetism, Structure and Computational Studies. SUSTAINABILITY 2020. [DOI: 10.3390/su12062512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The capability of a given substance to change its spin state by the action of a stimulus, such as a change in temperature, is by itself a very challenging property. Its interest is increased by the potential applications and the need to find sustainable functional materials. 3D transition metal complexes, mainly with octahedral geometry, display this property when coordinated to particular sets of ligands. The prediction of this behavior has been attempted by many authors. It is, however, made very difficult because spin crossover (SCO), as it is called, occurs most often in the solid state, where besides complexes, counter ions, and solvents are also present in many cases. Intermolecular interactions definitely play a major role in SCO. In this review, we decided to analyze SCO in mono- and binuclear transition metal complexes containing halogens as ligands or as substituents of the ligands. The aim was to try and find trends in the properties which might be correlated to halogen substitution patterns. Besides a revision of the properties, we analyzed structures and other information. We also tried to build a simple model to run Density Functional Theory (DFT) calculations and calculate several parameters hoping to find correlations between calculated indices and SCO data. Although there are many experimental studies and single-crystal X-ray diffraction structures, there are only few examples with the F, Cl, Br and series. When their intermolecular interactions were not very different, T1/2 (temperature with 50% high spin and 50% low spin states) usually increased with the calculated ligand field parameter (Δoct) within a given family. A way to predict SCO remains elusive.
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Abstract
Metal-organic frameworks represent the ultimate chemical platform on which to develop a new generation of designer magnets. In contrast to the inorganic solids that have dominated permanent magnet technology for decades, metal-organic frameworks offer numerous advantages, most notably the nearly infinite chemical space through which to synthesize predesigned and tunable structures with controllable properties. Moreover, the presence of a rigid, crystalline structure based on organic linkers enables the potential for permanent porosity and postsynthetic chemical modification of the inorganic and organic components. Despite these attributes, the realization of metal-organic magnets with high ordering temperatures represents a formidable challenge, owing largely to the typically weak magnetic exchange coupling mediated through organic linkers. Nevertheless, recent years have seen a number of exciting advances involving frameworks based on a wide range of metal ions and organic linkers. This review provides a survey of structurally characterized metal-organic frameworks that have been shown to exhibit magnetic order. Section 1 outlines the need for new magnets and the potential role of metal-organic frameworks toward that end, and it briefly introduces the classes of magnets and the experimental methods used to characterize them. Section 2 describes early milestones and key advances in metal-organic magnet research that laid the foundation for structurally characterized metal-organic framework magnets. Sections 3 and 4 then outline the literature of metal-organic framework magnets based on diamagnetic and radical organic linkers, respectively. Finally, Section 5 concludes with some potential strategies for increasing the ordering temperatures of metal-organic framework magnets while maintaining structural integrity and additional function.
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Affiliation(s)
| | - T David Harris
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Department of Chemistry, University of California, Berkeley, California 94720, United States
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7
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Mizuno A, Shuku Y, Awaga K. Recent Developments in Molecular Spin Gyroid Research. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190033] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Asato Mizuno
- Department of Chemistry & Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Yoshiaki Shuku
- Department of Chemistry & Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Kunio Awaga
- Department of Chemistry & Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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Nemec I, Zoufalý P, Jewula P, Antal P, Linert W, Herchel R. Ion-pair complexes of Schiff base Fe(iii) cations and complex anions. NEW J CHEM 2019. [DOI: 10.1039/c9nj00192a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the crystal structure and magnetic properties of four new ion-pair complexes.
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Affiliation(s)
- Ivan Nemec
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- 771 46 Olomouc
- Czech Republic
| | - Pavel Zoufalý
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- 771 46 Olomouc
- Czech Republic
| | - Pawel Jewula
- Central European Institute of Technology
- CEITEC BUT
- Brno
- Czech Republic
| | - Peter Antal
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- 771 46 Olomouc
- Czech Republic
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- 1060 Vienna
- Austria
| | - Radovan Herchel
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- 771 46 Olomouc
- Czech Republic
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9
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Effect of Transition Metal Substitution on the Charge-Transfer Phase Transition and Ferromagnetism of Dithiooxalato-Bridged Hetero Metal Complexes, (n-C3H7)4N[FeII1−xMnIIxFeIII(dto)3]. CRYSTALS 2018. [DOI: 10.3390/cryst8120446] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The dithiooxalato-bridged iron mixed-valence complex (n-C3H7)4N[FeIIFeIII(dto)3] (dto = dithiooxalato) undergoes a novel charge-transfer phase transition (CTPT) accompanied by electron transfer between adjacent FeII and FeIII sites. The CTPT influences the ferromagnetic transition temperature according to the change of spin configuration on the iron sites. To reveal the mechanism of the CTPT, we have synthesized the series of metal-substituted complexes (n-C3H7)4N[FeII1-xMnIIxFeIII(dto)3] (x = 0–1) and investigated their physical properties by means of magnetic susceptibility and dielectric constant measurements. With increasing MnII concentration, x, MnII-substituted complexes show the disappearance of CTPT above x = 0.04, while the ferromagnetic phase remains in the whole range of x. These results are quite different from the physical properties of the ZnII-substituted complex, (n-C3H7)4N[FeII1-xZnIIxFeIII(dto)3], which is attributed to the difference of ion radius as well as the spin states of MnII and ZnII.
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10
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Rodríguez-Velamazán JA, Roubeau O, Poloni R, Lhotel E, Palacios E, González MA, Real JA. Long-range magnetic order in the porous metal-organic framework Ni(pyrazine)[Pt(CN) 4]. Phys Chem Chem Phys 2017; 19:29084-29091. [PMID: 29057417 DOI: 10.1039/c7cp06310e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined study involving DFT calculations, neutron scattering, heat capacity and magnetic measurements at very low temperatures demonstrates the long-range magnetic ordering of Ni(pyrazine)[Pt(CN)4] below 1.9 K, describing its antiferromagnetic spin arrangement. This compound belongs to the family of porous coordination polymers M(pyrazine)[Pt(CN)4] (M = divalent metal), renowned for showing interesting combinations of porosity and magnetic properties. The possibility of including long-range magnetic ordering, one of the most pursued functional properties, opens new perspectives for the multifunctionality of this class of compounds.
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11
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Palacios-Corella M, Fernández-Espejo A, Bazaga-García M, Losilla ER, Cabeza A, Clemente-León M, Coronado E. Influence of Proton Conducting Cations on the Structure and Properties of 2D Anilate-Based Magnets. Inorg Chem 2017; 56:13865-13877. [DOI: 10.1021/acs.inorgchem.7b01965] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mario Palacios-Corella
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Alejandro Fernández-Espejo
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Montse Bazaga-García
- Departamento de Química Inorgánica, Cristalografía
y Mineralogía, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Enrique R. Losilla
- Departamento de Química Inorgánica, Cristalografía
y Mineralogía, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Aurelio Cabeza
- Departamento de Química Inorgánica, Cristalografía
y Mineralogía, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
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12
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Spin-Singlet Transition in the Magnetic Hybrid Compound from a Spin-Crossover Fe(III) Cation and π-Radical Anion. INORGANICS 2017. [DOI: 10.3390/inorganics5030054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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13
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Molecular magnetism, quo vadis? A historical perspective from a coordination chemist viewpoint☆. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.004] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Recent Advances on Anilato-Based Molecular Materials with Magnetic and/or Conducting Properties. MAGNETOCHEMISTRY 2017. [DOI: 10.3390/magnetochemistry3020017] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Sánchez-Sánchez C, Desplanches C, Clemente-Juan JM, Clemente-León M, Coronado E. Photomagnetic properties of an Fe(ii) spin-crossover complex of 6-(3,5-diamino-2,4,6-triazinyl)-2,2′-bipyridine and its insertion into 2D and 3D bimetallic oxalate-based networks. Dalton Trans 2017; 46:2680-2689. [DOI: 10.1039/c6dt04900a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The Fe(ii) complex of 6-diaminotriazyl-2,2′-bipyridine shows the LIESST effect and has been used as a countercation of two oxalate-based ferromagnets.
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Affiliation(s)
- C. Sánchez-Sánchez
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
| | | | - J. M. Clemente-Juan
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
| | - M. Clemente-León
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
| | - E. Coronado
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
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16
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Syntheses, crystal structures, electronic spectra and magnetic properties of two ion-pair charge transfer complexes based on [Ni(mnt)2]−. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Muzioł TM, Wrzeszcz G. Spontaneous resolution of heterometallic complex: cis-[Co(NH3)4(H2O)2][Fe(ox)3]·2H2O – A rare example for labile iron(III) complex. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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19
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Jurić M, Pajić D, Žilić D, Rakvin B, Molčanov K, Popović J. Magnetic order in a novel 3D oxalate-based coordination polymer {[Cu(bpy)3][Mn2(C2O4)3]·H2O}n. Dalton Trans 2015; 44:20626-35. [PMID: 26564382 DOI: 10.1039/c5dt02933c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A heterometallic coordination polymer {[Cu(bpy)3][Mn2(C2O4)3]·H2O}n (1; bpy = 2,2'-bipyridine) was synthesized using a building-block approach and characterized by IR spectroscopy, single-crystal X-ray diffraction, magnetization measurement, and X-band ESR spectroscopy both on a single crystal and a polycrystalline sample. The molecular structure of 1 is made of a three-dimensional (3D) anionic network [Mn2(C2O4)3]n(2n-) and tris-chelated cations [Cu(bpy)3](2+) occupying the vacancies of the framework. In compound 1 magnetic order is confirmed below 12.8 K - magnetization measurements reveal an antiferromagnetic-like network of canted Mn(2+) spins with incorporated paramagnetic Cu(2+) centres. The ESR spectroscopy distinctly shows the phase transition; above T≈ 13 K, single isotropic Lorentzian lines of Mn(2+) ions in the high spin state S = 5/2 were observed, while below this temperature, only characteristic Cu(2+) signals from cations were detected. Thermal decomposition residues of 1 at different temperatures (800-1000 °C) were analyzed by powder X-ray diffraction; by heating the sample up to 1000 °C the spinel oxide CuMn2O4 [94.1(2) wt%] was formed. From the refined structural parameters, it could be seen that the obtained spinel is characterized by the inversion parameter δ∼ 0.8, and therefore the structural formula at room temperature can be written as (tet)[Cu0.17Mn0.83](oct)[Mn1.17Cu0.83]O4.
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Affiliation(s)
- Marijana Jurić
- Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
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20
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López-Jordà M, Giménez-Marqués M, Desplanches C, Mínguez Espallargas G, Clemente-León M, Coronado E. Insertion of a [FeII(pyimH)3]2+[pyimH = 2-(1H-Imidazol-2-yl)pyridine] Spin-Crossover Complex Inside a Ferromagnetic Lattice Based on a Chiral 3D Bimetallic Oxalate Network. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500790] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Abhervé A, Mañas-Valero S, Clemente-León M, Coronado E. Graphene related magnetic materials: micromechanical exfoliation of 2D layered magnets based on bimetallic anilate complexes with inserted [Fe III(acac 2-trien)] + and [Fe III(sal 2-trien)] + molecules. Chem Sci 2015; 6:4665-4673. [PMID: 28717480 PMCID: PMC5500854 DOI: 10.1039/c5sc00957j] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/22/2015] [Indexed: 02/06/2023] Open
Abstract
The syntheses, structures and magnetic properties of the coordination compounds of formula [FeIII(acac2-trien)][MnIICrIII(Cl2 An)3]·(CH3CN)2 (1), [FeIII(acac2-trien)][MnIICrIII(Br2An)3]·(CH3CN)2 (2) and [GaIII(acac2-trien)][MnIICrIII(Br2An)3]·(CH3CN)2 (3) are reported. They exhibit a 2D anionic network formed by Mn(ii) and Cr(iii) ions linked through anilate ligands, while the [FeIII(acac2-trien)]+ or [GaIII(acac2-trien)]+ charge-compensating cations are placed inside the hexagonal channels of the 2D network, instead of being inserted in the interlamellar spacing. Thus, these crystals are formed by hybrid layers assembled through van der Waals interactions. The magnetic properties indicate that these compounds behave as magnets exhibiting a long-range ferrimagnetic ordering at ca. 11 K, while the inserted Fe(iii) cations remain in the high-spin state. As for graphene, these layered materials can be exfoliated in atomically-thin layers with heights down to 2 nm by using the well-known Scotch tape method. Hence, this micromechanical procedure provides a suitable way to isolate ultrathin layers of this kind of graphene related magnetic materials. Interestingly, this method can also be successfully used to exfoliate the 2D anilate-based compound [FeIII(sal2-trien)][MnIICrIII(Cl2An)3]·solv (4), which exhibits the typical alternated cation/anion layered structure. This result shows that the micromechanical exfoliation method, which has been extensively used for exfoliating van der Waals layered solids, can also be useful for exfoliating layered coordination compounds, even when they are formed by ionic components.
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Affiliation(s)
- Alexandre Abhervé
- Instituto de Ciencia Molecular , Universidad de Valencia , Catedrático José Beltrán 2 , Paterna , 46980 , Spain . ; ; ; Tel: +34 963544405
| | - Samuel Mañas-Valero
- Instituto de Ciencia Molecular , Universidad de Valencia , Catedrático José Beltrán 2 , Paterna , 46980 , Spain . ; ; ; Tel: +34 963544405
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular , Universidad de Valencia , Catedrático José Beltrán 2 , Paterna , 46980 , Spain . ; ; ; Tel: +34 963544405
| | - Eugenio Coronado
- Instituto de Ciencia Molecular , Universidad de Valencia , Catedrático José Beltrán 2 , Paterna , 46980 , Spain . ; ; ; Tel: +34 963544405
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22
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Benmansour S, Vallés-García C, Gómez-Claramunt P, Mínguez Espallargas G, Gómez-García CJ. 2D and 3D Anilato-Based Heterometallic M(I)M(III) Lattices: The Missing Link. Inorg Chem 2015; 54:5410-8. [PMID: 25965415 DOI: 10.1021/acs.inorgchem.5b00451] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The similar bis-bidentate coordination mode of oxalato and anilato-based ligands is exploited here to create the first examples of 2D and 3D heterometallic lattices based on anilato ligands combining M(I) and a M(III) ions, phases already observed with oxalato but unknown with anilato-type ligands. These lattices are prepared with alkaline metal ions and magnetic chiral tris(anilato)metalate molecular building blocks: [M(III)(C6O4X2)3](3-) (M(III) = Fe and Cr; X = Cl and Br; (C6O4X2)(2-) = dianion of the 3,6-disubstituted derivatives of 2,5-dihydroxy-1,4-benzoquinone, H4C6O4). The new compounds include two very similar 2D lattices formulated as (PBu3Me)2[NaCr(C6O4Br2)3] (1) and (PPh3Et)2[KFe(C6O4Cl2)3](dmf)2 (2), both presenting hexagonal [M(I)M(III)(C6O4X2)3](2-) honeycomb layers with (PBu3Me)(+) in 1 or (PPh3Et)(+) and dmf in 2 inserted between them. Minor modifications in the synthetic conditions yield the novel 3D lattice (NEt3Me)[Na(dmf)][NaFe(C6O4Cl2)3] (3), in which hexagonal layers analogous to 1 and 2 are interconnected through Na(+) cations, and (NBu3Me)2[NaCr(C6O4Br2)3] (4), the first heterometallic 3D lattice based on anilato ligands. This compound presents two interlocked chiral 3D (10,3) lattices with opposite chiralities. Attempts to prepare 4 in larger quantities result in the 2D polymorph of compound 4 (4'). Magnetic properties of compounds 1, 3, and 4' are reported, and in all cases we observe, as expected, paramagnetic behaviors that can be satisfactorily reproduced with simple monomer models including a zero field splitting (ZFS) of the corresponding S = 3/2 for Cr(III) in 1 and 4' or S = 5/2 for Fe(III) in 3.
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Affiliation(s)
- Samia Benmansour
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain
| | - Cristina Vallés-García
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain
| | - Patricia Gómez-Claramunt
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain
| | - Guillermo Mínguez Espallargas
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain
| | - Carlos J Gómez-García
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain
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Kropp H, Scheurer A, Heinemann FW, Bendix J, Meyer K. Coordination-Induced Spin-State Change in Manganese(V) Complexes: The Electronic Structure of Manganese(V) Nitrides. Inorg Chem 2015; 54:3562-72. [DOI: 10.1021/acs.inorgchem.5b00112] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Henning Kropp
- Department of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Egerlandstrasse
1, 91058 Erlangen, Germany
| | - Andreas Scheurer
- Department of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Egerlandstrasse
1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Egerlandstrasse
1, 91058 Erlangen, Germany
| | - Jesper Bendix
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Karsten Meyer
- Department of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Egerlandstrasse
1, 91058 Erlangen, Germany
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24
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Mei HX, Zhang T, Wang DF, Huang RB, Zheng LS. A Zn-oxalate helix linked by a water helix: spontaneous chiral resolution of a Zn helical coordination polymer. NEW J CHEM 2015. [DOI: 10.1039/c4nj02017k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two enantiomers of a Zn helical coordination polymer have been obtained from spontaneous resolution. In this compound, homochiral Zn-oxalate helices are linked by water helices comprising coordinated and guest water.
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Affiliation(s)
- Hong-Xin Mei
- State Key Laboratory of Physical Chemistry of Solid Surface
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Ting Zhang
- State Key Laboratory of Physical Chemistry of Solid Surface
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Dan-Feng Wang
- State Key Laboratory of Physical Chemistry of Solid Surface
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Rong-Bin Huang
- State Key Laboratory of Physical Chemistry of Solid Surface
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
| | - Lan-Sun Zheng
- State Key Laboratory of Physical Chemistry of Solid Surface
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
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25
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Wen HR, Bao J, Liu SJ, Liu CM, Zhang CW, Tang YZ. Temperature-controlled polymorphism of chiral CuII–LnIII dinuclear complexes exhibiting slow magnetic relaxation. Dalton Trans 2015; 44:11191-201. [DOI: 10.1039/c5dt00789e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family of chiral Cu–Ln dinuclear complexes with two different space groups has been constructed. The temperature-controlled reversible conversion from one chiral single-crystal to another chiral single-crystal with slow magnetic relaxation has been achieved.
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Affiliation(s)
- He-Rui Wen
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P.R. China
| | - Jun Bao
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P.R. China
| | - Sui-Jun Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P.R. China
| | - Cai-Ming Liu
- Beijing National Laboratory for Molecular Sciences
- Center for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Cai-Wei Zhang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P.R. China
| | - Yun-Zhi Tang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P.R. China
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26
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Abhervé A, Clemente-León M, Coronado E, Gómez-García CJ, Verneret M. One-Dimensional and Two-Dimensional Anilate-Based Magnets with Inserted Spin-Crossover Complexes. Inorg Chem 2014; 53:12014-26. [DOI: 10.1021/ic5016803] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexandre Abhervé
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Carlos J. Gómez-García
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Martin Verneret
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
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27
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Habjanič J, Jurić M, Popović J, Molčanov K, Pajić D. A 3D oxalate-based network as a precursor for the CoMn₂O₄ spinel: synthesis and structural and magnetic studies. Inorg Chem 2014; 53:9633-43. [PMID: 25153036 DOI: 10.1021/ic501134y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A novel heterometallic oxalate-based compound of the formula {[Co(bpy)3][Mn2(C2O4)3]·H2O}n (1; bpy = 2,2'-bipyridine) was synthesized and characterized by elemental analysis, IR spectroscopy, single-crystal X-ray diffraction (XRD), and magnetization measurement. The molecular structure of 1 is made of a three-dimensional (3D) anionic network, [Mn2(C2O4)3]n(2n-), and tris-chelated cations [Co(bpy)3](2+) occupying the vacancies of the framework. Splitting between the zero-field-cooled (ZFC) and field-cooled (FC) branches of susceptibility below the small peak at 13 K indicates magnetic ordering. Compound 1 was used as a single-source precursor for the formation of the mixed-metal oxide CoMn2O4. This conversion via thermal decomposition was explored by thermal analysis (TGA and DTA), IR spectroscopy, powder XRD, and magnetic susceptibility measurement. From refined structural parameters, it could be seen that the spinel obtained by the thermal treatment of 1 at 800 °C is characterized by the inversion parameter δ = 21%, and therefore the structural formula at room temperature can be written as (tet)[Co(0.79)Mn(0.21)](oct)[Co(0.105)Mn(0.895)]2O4. The temperature dependence of magnetization for CoMn2O4 points to at least three magnetic phases: the ferrimagnetic state is observed below 83 K, and up to 180 K blocking of the magnetic moments of nanocrystallites of 31 nm appears, transforming to paramagnetic-like behavior above 180 K. Microstructural characterization of the CoMn2O4 sample was carried out by means of XRD line-broadening analysis.
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Affiliation(s)
- Jelena Habjanič
- Ruđer Bošković Institute , Bijenička cesta 54, 10000 Zagreb, Croatia
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28
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Rodríguez-Velamazán JA, Fabelo O, Beavers CM, Natividad E, Evangelisti M, Roubeau O. A multifunctional magnetic material under pressure. Chemistry 2014; 20:7956-61. [PMID: 24807735 DOI: 10.1002/chem.201402046] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Indexed: 11/10/2022]
Abstract
Fe(II)(Metz)6](Fe(III)Br4)2 (Metz = 1-methyltetrazole) is one of the rare systems combining spin-crossover and long-range magnetic ordering. A joint neutron and X-ray diffraction and magnetometry study allows determining its collinear antiferromagnetic structure, and shows an increase of the Néel temperature from 2.4 K at ambient pressure, to 3.9 K at 0.95 GPa. Applied pressure also enables a full high-spin to low-spin switch at ambient temperature.
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Affiliation(s)
- J Alberto Rodríguez-Velamazán
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC and Universidad de Zaragoza, Plaza San Francisco, 50009, Zaragoza, Spain; Institut Laue-Langevin, 38042 Grenoble Cedex, France.
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29
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Gass IA, Tewary S, Rajaraman G, Asadi M, Lupton DW, Moubaraki B, Chastanet G, Létard JF, Murray KS. Solvate-Dependent Spin Crossover and Exchange in Cobalt(II) Oxazolidine Nitroxide Chelates. Inorg Chem 2014; 53:5055-66. [DOI: 10.1021/ic5001057] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Ian A. Gass
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- School of Pharmacy
and Biomolecular Sciences, University of Brighton, Brighton BN2 4GJ, U.K
| | - Subrata Tewary
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Mousa Asadi
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - David W. Lupton
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Boujemaa Moubaraki
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Guillaume Chastanet
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, 33608 Pessac, France
| | - Jean-Francois Létard
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, 33608 Pessac, France
| | - Keith S. Murray
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
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30
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Insertion of a Single-Molecule Magnet inside a Ferromagnetic Lattice Based on a 3D Bimetallic Oxalate Network: Towards Molecular Analogues of Permanent Magnets. Chemistry 2013; 20:1669-76. [DOI: 10.1002/chem.201303044] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Indexed: 11/07/2022]
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31
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Ostrovsky SM, Reu OS, Palii AV, Clemente-León M, Coronado E, Waerenborgh JC, Klokishner SI. Modeling the Magnetic Properties and Mössbauer Spectra of Multifunctional Magnetic Materials Obtained by Insertion of a Spin-Crossover Fe(III) Complex into Bimetallic Oxalate-Based Ferromagnets. Inorg Chem 2013; 52:13536-45. [DOI: 10.1021/ic401997w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. M. Ostrovsky
- Institute of Applied Physics, Academy of Sciences of Moldova, Academy Street 5, Kishinev, MD-2028, Moldova
| | - O. S. Reu
- Institute of Applied Physics, Academy of Sciences of Moldova, Academy Street 5, Kishinev, MD-2028, Moldova
| | - A. V. Palii
- Institute of Applied Physics, Academy of Sciences of Moldova, Academy Street 5, Kishinev, MD-2028, Moldova
| | - M. Clemente-León
- Instituto
de Ciencia Molecular (ICMol), Universitat de Valencia, Catedrático
José Beltrán 2 46980 Paterna, Spain
| | - E. Coronado
- Instituto
de Ciencia Molecular (ICMol), Universitat de Valencia, Catedrático
José Beltrán 2 46980 Paterna, Spain
| | - J. C. Waerenborgh
- IST/ITN, Instituto
Superior Técnico, Universidade Técnica de Lisboa, CFMC-UL 2686-953 Sacavém, Portugal
| | - S. I. Klokishner
- Institute of Applied Physics, Academy of Sciences of Moldova, Academy Street 5, Kishinev, MD-2028, Moldova
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32
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Ben Djamâa A, Clemente-León M, Coronado E, López-Jordà M. Insertion of FeII complexes with Schiff base ligands derived from imidazole or pyridine into 3D bimetallic oxalate-based ferromagnets. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.03.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Li L, Chen S, Zhou RM, Bai Y, Dang DB. A novel cobalt (I) coordination polymer with mixed thiocyanate and quinoline ligands: crystal structure, magnetism and luminescent properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:401-404. [PMID: 24211622 DOI: 10.1016/j.saa.2013.10.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 10/02/2013] [Accepted: 10/09/2013] [Indexed: 06/02/2023]
Abstract
A new Co(I) one-dimensional coordination polymer [Co(SCN)(ql)]n (ql=quinoline) (1) has been synthesized and characterized by IR, elemental analysis, TG technique and X-ray crystallography. Co(I) atom has a distorted trigonal pyramidal N2S2 (1) environment with two S atoms and one N atom from three μ-1,1,3-thiocyanate bridge ligands and one N atom from ql ligand. Two S atoms from two μ-1,1,3-SCN- bridging ligands bridge two centers to obtain bimetallic 4-membered ring. Adjacent 4-membered rings are linked by a pair of μ-1,1,3-SCN- bridging ligands to form a 1D stair-case like chain. The luminescent properties and magnetic properties of the polymer 1 were investigated in the solid state.
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Affiliation(s)
- Lei Li
- Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
| | - Shuai Chen
- Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
| | - Rui-Min Zhou
- Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
| | - Yan Bai
- Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China.
| | - Dong-Bin Dang
- Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China.
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34
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Atzori M, Benmansour S, Mínguez Espallargas G, Clemente-León M, Abhervé A, Gómez-Claramunt P, Coronado E, Artizzu F, Sessini E, Deplano P, Serpe A, Mercuri ML, Gómez García CJ. A family of layered chiral porous magnets exhibiting tunable ordering temperatures. Inorg Chem 2013; 52:10031-40. [PMID: 23968133 DOI: 10.1021/ic4013284] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple change of the substituents in the bridging ligand allows tuning of the ordering temperatures, Tc, in the new family of layered chiral magnets A[M(II)M(III)(X2An)3]·G (A = [(H3O)(phz)3](+) (phz = phenazine) or NBu4(+); X2An(2-) = C6O4X2(2-) = 2,5-dihydroxy-1,4-benzoquinone derivative dianion, with M(III) = Cr, Fe; M(II) = Mn, Fe, Co, etc.; X = Cl, Br, I, H; G = water or acetone). Depending on the nature of X, an increase in Tc from ca. 5.5 to 6.3, 8.2, and 11.0 K (for X = Cl, Br, I, and H, respectively) is observed in the MnCr derivative. Furthermore, the presence of the chiral cation [(H3O)(phz)3](+), formed by the association of a hydronium ion with three phenazine molecules, leads to a chiral structure where the Δ-[(H3O)(phz)3](+) cations are always located below the Δ-[Cr(Cl2An)3](3-) centers, leading to a very unusual localization of both kinds of metals (Cr and Mn) and to an eclipsed disposition of the layers. This eclipsed disposition generates hexagonal channels with a void volume of ca. 20% where guest molecules (acetone and water) can be reversibly absorbed. Here we present the structural and magnetic characterization of this new family of anilato-based molecular magnets.
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Affiliation(s)
- Matteo Atzori
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, Bivio per Sestu, I09042 Monserrato, Cagliari, Italy
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35
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Huang W, Shui YH, Zhang XX, Wu DY. Homochiral three-dimensional coordination polymer consisting of one-dimensional copper chain: Synthesis, structure and magnetic property. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Clemente-León M, Coronado E, López-Jordà M, Waerenborgh JC, Desplanches C, Wang H, Létard JF, Hauser A, Tissot A. Stimuli Responsive Hybrid Magnets: Tuning the Photoinduced Spin-Crossover in Fe(III) Complexes Inserted into Layered Magnets. J Am Chem Soc 2013; 135:8655-67. [DOI: 10.1021/ja402674x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Miguel Clemente-León
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático
José Beltrán 2, 46980 Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático
José Beltrán 2, 46980 Paterna, Spain
| | - Maurici López-Jordà
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático
José Beltrán 2, 46980 Paterna, Spain
| | - João C. Waerenborgh
- IST/ITN, Instituto Superior
Técnico, Universidade Técnica de Lisboa, CFMC-UL, 2686-953 Sacavém, Portugal
| | - Cédric Desplanches
- Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer,
Pessac, F-33608, France
| | - Hongfeng Wang
- Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer,
Pessac, F-33608, France
| | - Jean-François Létard
- Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer,
Pessac, F-33608, France
| | - Andreas Hauser
- Département de Chimie
Physique, Université de Genève, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
| | - Antoine Tissot
- Département de Chimie
Physique, Université de Genève, 30 Quai Ernest-Ansermet, CH-1211 Genève 4, Switzerland
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38
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Chorazy S, Podgajny R, Nitek W, Fic T, Görlich E, Rams M, Sieklucka B. Natural and magnetic optical activity of 2-D chiral cyanido-bridged MnII–NbIV molecular ferrimagnets. Chem Commun (Camb) 2013; 49:6731-3. [DOI: 10.1039/c3cc43195a] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Scott HS, Ross TM, Chilton NF, Gass IA, Moubaraki B, Chastanet G, Paradis N, Lètard JF, Vignesh KR, Rajaraman G, Batten SR, Murray KS. Crown-linked dipyridylamino-triazine ligands and their spin-crossover iron(ii) derivatives: magnetism, photomagnetism and cooperativity. Dalton Trans 2013; 42:16494-509. [PMID: 23942475 DOI: 10.1039/c3dt51839f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Hayley S Scott
- School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia.
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40
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Clemente-León M, Coronado E, López-Jordà M. 2D and 3D bimetallic oxalate-based ferromagnets prepared by insertion of MnIII-salen type complexes. Dalton Trans 2013; 42:5100-10. [DOI: 10.1039/c3dt32996h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Potassium trans-[bis(oxalato)diaquacobaltate(II)] tetrahydrate: synthesis, structure, potentiometric and thermal studies. OPEN CHEM 2013. [DOI: 10.2478/s11532-012-0129-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe title compound, trans-K2[Co(C2O4)2(H2O)2]·4H2O, was synthesised, and characterised by elemental analysis. Acid dissociation constants for the complex were determined by potentiometric titration and calculated by STOICHIO program. The crystal structure of trans-K2[Co(C2O4)2(H2O)2]·4H2O was determined by X-ray diffraction studies. The asymmetric part of the unit cell contains one symmetric anion of oxalate and water molecule bound with Co(II) ion in crystallographic special position, one potassium cation and two molecules of water. Thermal properties of the complex were examined by thermogravimetric analysis (TGA). A decomposition mechanism is proposed on the basis of the results.
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Clemente-León M, Coronado E, López-Jordà M. 2D Bimetallic Oxalate-Based Ferromagnets with Inserted [Fe(4-Br-sal2-trien)]+and [Fe(3-R-sal2-trien)]+(R = Br, Cl and CH3O) FeIIISpin-Crossover Complexes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201113] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Boilleau C, Suaud N, Guihéry N. Ab initio study of the influence of structural parameters on the potential energy surfaces of spin-crossover Fe(II) model compounds. J Chem Phys 2012; 137:224304. [DOI: 10.1063/1.4768870] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Corentin Boilleau
- Université de Toulouse, UPS, Laboratoire de Chimie et Physique Quantiques, IRSAMC, F-31062 Toulouse, France
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Sheu C, Chen S, Lee G, Liu Y, Wen Y, Lee J, Chuang Y, Wang Y. Structure and Magnetism of the Iron(III) Spin‐Crossover Complex [Fe
III
{
N
‐ethyl‐
N
‐(2‐aminoethyl)salicylaldiminate}
2
]ClO
4. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chou‐Fu Sheu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, Fax: +886‐2‐23638377, http://www.ntu.edu.tw/
| | - Szu‐Miao Chen
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, Fax: +886‐2‐23638377, http://www.ntu.edu.tw/
| | - Gene‐Hsiang Lee
- Instrumentation Center, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yi‐Hung Liu
- Instrumentation Center, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yuh‐Sheng Wen
- Institute of Chemistry, Academia Sinica, 128 Academia Road Sec. 2, Nankang, Taipei 11529, Taiwan
| | - Jey‐Jau Lee
- National Synchrotron Radiation Research Center, Hsin Chu, Taiwan
| | - Yu‐Chun Chuang
- National Synchrotron Radiation Research Center, Hsin Chu, Taiwan
| | - Yu Wang
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, Fax: +886‐2‐23638377, http://www.ntu.edu.tw/
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Vallejo J, Castro I, Déniz M, Ruiz-Pérez C, Lloret F, Julve M, Ruiz-García R, Cano J. Theoretical Insights into the Ferromagnetic Coupling in Oxalato-Bridged Chromium(III)-Cobalt(II) and Chromium(III)-Manganese(II) Dinuclear Complexes with Aromatic Diimine Ligands. Inorg Chem 2012; 51:3289-301. [DOI: 10.1021/ic202755z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | | | - Mariadel Déniz
- Laboratorio de Rayos X y Materiales
Moleculares, Departamento de Física Fundamental II, Facultad
de Física, Universidad de la Laguna, E-38204 La Laguna, Tenerife, Spain
| | - Catalina Ruiz-Pérez
- Laboratorio de Rayos X y Materiales
Moleculares, Departamento de Física Fundamental II, Facultad
de Física, Universidad de la Laguna, E-38204 La Laguna, Tenerife, Spain
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Roubeau O, Evangelisti M, Natividad E. A spin crossover ferrous complex with ordered magnetic ferric anions. Chem Commun (Camb) 2012; 48:7604-6. [DOI: 10.1039/c2cc33709f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Scott HS, Ross TM, Batten SR, Gass IA, Moubaraki B, Neville SM, Murray KS. Iron(II) Mononuclear Materials Containing Functionalised Dipyridylamino-Substituted Triazine Ligands: Structure, Magnetism and Spin Crossover. Aust J Chem 2012. [DOI: 10.1071/ch12052] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The spin crossover effect in iron(II) materials containing the di-2-pyridylamine functional group has been investigated for the new nitrile-functionalised ligand DTAC (2,2′,2″,2″′-((6-(di(pyridin-2-yl)amino)-1,3,5-triazine-2,4 diyl)bis(azanetriyl))tetra acetonitrile). This ligand has successfully been incorporated into a family of materials of the general formula trans-[Fe(DTAC)2(anion)2], wherein we have systematically varied the trans-nitrogen donor anion from NCS, NCSe, N(CN)2 (dca; dicyanamide) to NCBH3 – thus forming the four mononuclear materials trans-[Fe(DTAC)2(NCS)2]·6MeCN (1), trans-[Fe(DTAC)2(NCSe)2]·6MeCN (2), trans-[Fe(DTAC)2(N(CN)2)2] (3) and trans-[Fe(DTAC)2 (NCBH3)2]·3MeCN (4)). We find that the materials with a weaker crystal field strength anion remain high spin over all temperatures (1 and 2) whereas the materials containing stronger crystal field strength anions undergo a thermally induced spin crossover (3 and 4). Structural analysis revealed that the packing interactions in the solid state and the degree of solvation also play a large role in the observed magnetic behaviour. Indeed, aged or rapidly precipitated samples of 2 show a spin transition above room temperature.
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