1
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Lee KHK, Christou G. Semiempirical Magnetostructural Correlation for High-Nuclearity Mn III-Oxo Complexes: Accommodation of Different Relative Jahn-Teller Axis Orientations. Inorg Chem 2023. [PMID: 37922406 DOI: 10.1021/acs.inorgchem.3c02739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
The previous development of a magnetostructural correlation (MSC) for polynuclear FeIII/oxo clusters has now been extended to one for polynuclear MnIII/oxo clusters. A semiempirical model estimating each pairwise Mn2 exchange constant (Jij) from the Mn-O bond lengths and Mn-O-Mn angles has been formulated based on the angular overlap model. The extra complication, compared with the FeIII/oxo MSC, of different relative orientations of the Jahn-Teller distortion axes typical of high-spin MnIII in near-octahedral geometry was accommodated by developing a separate MSC variant for each possible situation. The final coefficients of the three MSC variants were determined by using reliable crystal structure data and experimentally determined Jij values from the literature. The estimated JMSC values from the new MnIII/oxo MSC have been employed to successfully rationalize the magnetic properties of a number of MnIII clusters in the nuclearity range Mn3-Mn10. These properties include relative spin vector alignments in the ground state, the presence of spin frustration effects, and the resulting overall ground state spin. In addition, the JMSC values can be used to simulate the direct-current magnetic susceptibility versus temperature data and provide realistic input values for fits of these data to minimize false-fit problems. A protocol for the use of the new MSC is also reported.
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Affiliation(s)
- Kenneth Hong Kit Lee
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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2
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Reactivity of 9-anthracenecarboxylate in the presence of Mn(II) and Mn(III) ions: Biomimetic aerobic oxidative decarboxylation catalysed by a manganese(III) 2,2′-bipyridine complex. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Vignesh KR, Langley SK, Gartshore CJ, Borilović I, Forsyth CM, Rajaraman G, Murray KS. Rationalizing the sign and magnitude of the magnetic coupling and anisotropy in dinuclear manganese(iii) complexes. Dalton Trans 2018; 47:11820-11833. [PMID: 29951677 DOI: 10.1039/c8dt01410h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We have synthesised twelve manganese(iii) dinuclear complexes, 1-12, in order to understand the origin of magnetic exchange (J) between the metal centres and the magnetic anisotropy (D) of each metal ion using a combined experimental and theoretical approach. All twelve complexes contain the same bridging ligand environment of one μ-oxo and two μ-carboxylato, that helped us to probe how the structural parameters, such as bond distance, bond angle and especially Jahn-Teller dihedral angle affect the magnetic behaviour. Among the twelve complexes, we found ferromagnetic coupling for five and antiferromagnetic coupling for seven. DFT computed the J and ab initio methods computed the D parameter, and are in general agreement with the experimentally determined values. The dihedral angle between the two Jahn-Teller axes of the constituent MnIII ions are found to play a key role in determining the sign of the magnetic coupling. Magneto-structural correlations are developed by varying the Mn-O distance and the Mn-O-Mn angle to understand how the magnetic coupling changes upon these structural changes. Among the developed correlations, the Mn-O distance is found to be the most sensitive parameter that switches the sign of the magnetic coupling from negative to positive. The single-ion zero-field splitting of the MnIII centres is found to be negative for complexes 1-11 and positive for complex 12. However, the zero-field splitting of the S = 4 state for the ferromagnetic coupled dimers is found to be positive, revealing a significant contribution from the exchange anisotropy - a parameter which has long been ignored as being too small to be effective.
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4
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Pagès JM, Escriche-Tur L, Font-Bardia M, Aullón G, Corbella M. Indirect effect of hydrogen bonds on the magnetic coupling on Mn( iii) dinuclear compounds. CrystEngComm 2018. [DOI: 10.1039/c8ce01194j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hydrogen bonds between the cationic complex and counteranion weaken the antiferromagnetic interaction.
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Affiliation(s)
- J. M. Pagès
- Departament de Química Inorgànica i Orgànica (Secció Química Inorgànica)
- Facultat de Química
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - L. Escriche-Tur
- Departament de Química Inorgànica i Orgànica (Secció Química Inorgànica)
- Facultat de Química
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - M. Font-Bardia
- Departament de Mineralogia
- Petrologia i Geologia Aplicada
- Facultat de Ciències de la Terra
- Universitat de Barcelona
- 08028 Barcelona
| | - G. Aullón
- Departament de Química Inorgànica i Orgànica (Secció Química Inorgànica)
- Facultat de Química
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - M. Corbella
- Departament de Química Inorgànica i Orgànica (Secció Química Inorgànica)
- Facultat de Química
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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5
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Garcia-Cirera B, Gómez-Coca S, Font-Bardia M, Ruiz E, Corbella M. Influence of the Disposition of the Anisotropy Axes into the Magnetic Properties of Mn III Dinuclear Compounds with Benzoato Derivative Bridges. Inorg Chem 2017. [PMID: 28650620 DOI: 10.1021/acs.inorgchem.7b00877] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The two new MnIII dinuclear compounds [{Mn(H2O)(phen)}2(μ-4-CH3C6H4COO)2(μ-O)](ClO4)2·3CH3CN·H2O (1·3CH3CN·H2O) and [{Mn(H2O)(phen)}(μ-O)(μ-2-BrC6H4COO)2{Mn(NO3)(phen)}]NO3 (2) have been synthesized. Their structural data reveal significant differences in the shape of the coordination octahedron around the MnIII ions in both compounds. The different distortions from ideal geometry incite a very different magnetic behavior, affecting both the zero-field splitting parameters of the MnIII ions (DMn and EMn) and the magnetic interaction between them. Compound 1, with elongation in the monodentate ligand direction, shows antiferromagnetic coupling (ground state S = 0) and local DMn < 0, while compound 2, with compression in the oxo bridge direction, displays a ferromagnetic interaction (ground state S = 4) and local DMn > 0. Theoretical CASSCF and DFT calculations corroborate the different magnetic anisotropy and exchange coupling found in both compounds. Moreover, with the help of theoretical calculations, some interesting magneto-structural correlations have been found between the degree of distortion of the coordination octahedra and the magnetic coupling; it becomes more antiferromagnetic when the elongation parameter, Δ, in absolute value is increased.
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Affiliation(s)
- Beltzane Garcia-Cirera
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona , Barcelona 08007, Spain
| | - Silvia Gómez-Coca
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona , Barcelona 08007, Spain.,Institut de Química Teórica i Computacional de la Universitat de Barcelona (IQTCUB) , Barcelona 08007, Spain
| | - Mercè Font-Bardia
- Unitat de Difracció de Raigs X, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB) and Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona , Barcelona 08007, Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona , Barcelona 08007, Spain.,Institut de Química Teórica i Computacional de la Universitat de Barcelona (IQTCUB) , Barcelona 08007, Spain
| | - Montserrat Corbella
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona , Barcelona 08007, Spain.,Institut de Nanociencia i Nanotecnologia de la Universitat de Barcelona (IN2UB) , Barcelona 08007, Spain
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6
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Escriche-Tur L, Font-Bardia M, Albela B, Corbella M. New insights into the comprehension of the magnetic properties of dinuclear Mn(III) compounds with the general formula [{MnL(NN)}2(μ-O)(μ-n-RC6H4COO)2]X2. Dalton Trans 2016; 45:11753-64. [PMID: 27295557 DOI: 10.1039/c6dt01097k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five new dinuclear Mn(iii) compounds with benzoato derivative bridges [{Mn(bpy)L}2(μ-O)(μ-n-RC6H4COO)2]X2 (n-R = 3-MeO, 4-MeO and 4-tBu, X = NO3(-) and ClO4(-)) were synthesised and characterised. According to X-ray diffraction, the X anions tend to be coordinated to the Mn ions and may occupy the place of the monodentate ligand L. Two structural isomers that only differ in one of their monodentate ligands have been obtained with the 3-MeOC6H4COO(-) bridges. For all compounds, the Mn(iii) ions display elongated octahedra with a pronounced rhombic distortion. To quantify these distortions separately, the elongation and rhombicity parameters Δ and ρ have been defined. The magnetic study shows a good relationship between the distortion of the coordination polyhedra and the zero field splitting parameters (DMn and EMn). From the magnetic data of a powder sample, it is possible to determine the sign and magnitude of DMn for ferromagnetic systems or weak antiferromagnetic systems with DMn < 0. For this kind of dinuclear compound, the R group at the meta position, the rhombic distortion of the octahedra, and large torsion angles between the Jahn-Teller axes lead to ferromagnetic interactions.
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Affiliation(s)
- Luis Escriche-Tur
- Departament de Química Inorgànica i Orgànica (Secció inorgánica), Universitat de Barcelona, C/Martí i Franquès 1-11, 08028 Barcelona, Spain. and Laboratoire de Chimie, ENS de Lyon, Université de Lyon, 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Mercè Font-Bardia
- Cristallografia, Mineralogia i Dipòsits Minerals, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
| | - Belén Albela
- Laboratoire de Chimie, ENS de Lyon, Université de Lyon, 46 Allée d'Italie, 69364 Lyon Cedex 07, France
| | - Montserrat Corbella
- Departament de Química Inorgànica i Orgànica (Secció inorgánica), Universitat de Barcelona, C/Martí i Franquès 1-11, 08028 Barcelona, Spain. and Institud de Nanociència i Nanotecnologia de la Universitat de Barcelona (IN2UB), Av. Joan XXIII s/n, 08028 Barcelona, Spain
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7
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Mitchell KJ, Abboud KA, Christou G. Magnetostructural Correlation for High-Nuclearity Iron(III)/Oxo Complexes and Application to Fe5, Fe6, and Fe8 Clusters. Inorg Chem 2016; 55:6597-608. [DOI: 10.1021/acs.inorgchem.6b00769] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kylie J. Mitchell
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Khalil A. Abboud
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - George Christou
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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8
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Escriche-Tur L, Corbella M, Font-Bardia M, Castro I, Bonneviot L, Albela B. Biomimetic Mn-Catalases Based on Dimeric Manganese Complexes in Mesoporous Silica for Potential Antioxidant Agent. Inorg Chem 2015; 54:10111-25. [DOI: 10.1021/acs.inorgchem.5b01425] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Luis Escriche-Tur
- Laboratoire de Chimie, ENS de Lyon, Université de Lyon, 46 Allée d’Italie, 69364 Lyon Cedex 07, France
| | | | | | - Isabel Castro
- Institut de Ciència Molecular, Universitat de València, C/Catedrático
José Beltrán 2, 46980 Paterna, Spain
| | - Laurent Bonneviot
- Laboratoire de Chimie, ENS de Lyon, Université de Lyon, 46 Allée d’Italie, 69364 Lyon Cedex 07, France
| | - Belén Albela
- Laboratoire de Chimie, ENS de Lyon, Université de Lyon, 46 Allée d’Italie, 69364 Lyon Cedex 07, France
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9
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Walsh JPS, Sproules S, Chilton NF, Barra AL, Timco GA, Collison D, McInnes EJL, Winpenny REP. On the Possibility of Magneto-Structural Correlations: Detailed Studies of Dinickel Carboxylate Complexes. Inorg Chem 2014; 53:8464-72. [DOI: 10.1021/ic501036h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- James P. S. Walsh
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Stephen Sproules
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
- WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Nicholas F. Chilton
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Anne-Laure Barra
- Laboratoire National des Champs Magnétiques Intenses, 25, rue des
Martyrs, B.P. 166, 38042 Grenoble Cedex, France
| | - Grigore A. Timco
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - David Collison
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Eric J. L. McInnes
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Richard E. P. Winpenny
- School of Chemistry and Photon Science
Institute, The University of Manchester, Manchester M13 9PL, United Kingdom
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10
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Gómez V, Corbella M, Mautner FA, Roubeau O, Teat SJ, Font-Bardia M, Calvet T. Manganese compounds with phthalate and terephthalate ligands: Synthesis, crystal structure, magnetic properties and catalase activity. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.07.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Gómez V, Corbella M. Catalase Activity of Dinuclear Mn
III
Compounds with Chlorobenzoato Bridges. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200143] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Verónica Gómez
- Department de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona, Spain, Fax: +34‐934907725
| | - Montserrat Corbella
- Department de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona, Spain, Fax: +34‐934907725
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12
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Gómez V, Corbella M, Fernández G, Roubeau O, Teat SJ, Maestro MA. Aliphatic Dicarboxylate Ligands Assemble Weakly Coupled Molecular Pairs of [Mn
III
]
2
Units. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Verónica Gómez
- Department de Química Inorgànica, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain, Fax: +34‐934‐907‐725
| | - Montserrat Corbella
- Department de Química Inorgànica, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain, Fax: +34‐934‐907‐725
| | - Gema Fernández
- Department de Química Inorgànica, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain, Fax: +34‐934‐907‐725
| | - Olivier Roubeau
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC and Universidad de Zaragoza, Plaza San Francisco s/n, 50009, Zaragoza, Spain
| | - Simon J. Teat
- Advanced Light Source, Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Miguel A. Maestro
- Departamento de Química Fundamental, Universidade daCoruña, 15071 A Coruña, Spain
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13
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Corbella M, Fernández G, González P, Maestro M, Font‐Bardia M, Stoeckli‐Evans H. Dinuclear Mn
III
Compounds [{Mn(bpy)(H
2
O)}
2
(μ‐4‐RC
6
H
4
COO)
2
(μ‐O)](NO
3
)
2
(R = Me, F, CF
3
, MeO,
t
Bu): Effect of the R Group on the Magnetic Properties and the Catalase Activity. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101433] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Montserrat Corbella
- Departament de Química Inorgànica and Institut de Nanociènciai Nanotecnologia (INIUB), Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona, Spain, Fax: +34‐934907725
| | - Gema Fernández
- Departament de Química Inorgànica and Institut de Nanociènciai Nanotecnologia (INIUB), Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona, Spain, Fax: +34‐934907725
| | - Patricia González
- Departament de Química Inorgànica and Institut de Nanociènciai Nanotecnologia (INIUB), Universitat de Barcelona, Martí i Franquès 1–11, 08028 Barcelona, Spain, Fax: +34‐934907725
| | - Miguel Maestro
- Departamento de Química Fundamental and Servicios Xerais de Apoio a Investigación, Universidade da Coruña, 15071 A Coruña, Spain
| | - Mercè Font‐Bardia
- Departamento de Cristallografia, Mineralogia i DipòsitsMinerals, Universitat de Barcelona, Martí i Franquès s/n, and Unitat de Difracció de RX, Serveis Científico‐Tècnics, Universitat de Barcelona, Solé i Sabarís 1–3, 08028 Barcelona, Spain
| | - Helen Stoeckli‐Evans
- Institut de Chimie, Université de Neuchâtel, Av. Bellevaux 51, 2007 Neuchâtel, Switzerland
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