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Gamage EH, Ribeiro RA, Harmer CP, Canfield PC, Ozarowski A, Kovnir K. Tuning of Cr-Cr Magnetic Exchange through Chalcogenide Linkers in Cr 2 Molecular Dimers. Inorg Chem 2022; 61:6160-6174. [PMID: 35412816 DOI: 10.1021/acs.inorgchem.2c00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A set of three Cr-dimer compounds, Cr2Q2(en)4X2 (Q: S, Se; X: Br, Cl; en: ethylenediamine), with monoatomic chalcogenide bridges have been synthesized via a single-step solvothermal route. Chalcogenide linkers mediate magnetic exchange between Cr3+ centers, while bidentate ethylenediamine ligands complete the distorted octahedral coordination of Cr centers. Unlike the compounds previously reported, none of the chalcogenide atoms are connected to extra ligands. Magnetic susceptibility studies indicate antiferromagnetic coupling between Cr3+ centers, which are moderate in Cr2Se2(en)4X2 and stronger in Cr2S2(en)4Cl2. Fitting the magnetic data requires a biquadratic exchange term. High-frequency EPR spectra showing characteristic signals due to coupled S = 1 spin states could be interpreted in terms of the "giant spin" Hamiltonian. A fourth compound, Cr2Se8(en)4, has a single diatomic Se bridge connecting the two Cr3+ centers and shows weak ferromagnetic exchange interactions. This work demonstrates the tunability in strength and type of exchange interactions between metal centers by manipulating the interatomic distances and number of bridging chalcogenide linkers.
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Affiliation(s)
- Eranga H Gamage
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Raquel A Ribeiro
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States.,Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Colin P Harmer
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Paul C Canfield
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States.,Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
| | - Andrew Ozarowski
- National High Magnetic Field Laboratory, 1800 E Paul Dirac Dr, Tallahassee, Florida 32310, United States
| | - Kirill Kovnir
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
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Bazhina ES, Kiskin MA, Korlyukov AA, Babeshkin KA, Efimov NN, Shmelev MA, Kottsov SY, Khoroshilov AV, Ugolkova EA, Starikova AA, Korchagin DV, Minin VV, Eremenko IL. Barium(II)–Chromium(III) Coordination Polymers Based on Dimethylmalonate Anions: Synthesis, Crystal Structure, Magnetic Properties, and EPR Spectra. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Evgeniya S. Bazhina
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Mikhail A. Kiskin
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Alexander A. Korlyukov
- Nesmeyanov Institute of Organoelement Compounds the Russian Academy of Sciences Vavilova st. 28 119991 Moscow Russian Federation
| | - Konstantin A. Babeshkin
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Nikolay N. Efimov
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Maxim A. Shmelev
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Sergey Yu. Kottsov
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Andrey V. Khoroshilov
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Elena A. Ugolkova
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Alyona A. Starikova
- Institute of Physical and Organic Chemistry Southern Federal University prosp. Stachki 194/2 344090 Rostov‐on‐Don Russian Federation
| | - Denis V. Korchagin
- Institute of Problems of Chemical Physics the Russian Academy of Sciences Ac. Semenov prosp. 1 142432 Chernogolovka Moscow region Russian Federation
| | - Vadim V. Minin
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
| | - Igor L. Eremenko
- Kurnakov Institute of General and Inorganic Chemistry the Russian Academy of Sciences Leninskiy prosp. 31 119991 Moscow Russian Federation
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Ouilia S, Beghidja C, Beghidja A, Belkhiri L, Rabu P. Synthesis, crystal structure, magnetic properties and DFT calculations of new dihydroxo-bridged binuclear chromium(III) based on monodentate mixed ligand. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.02.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu B, Chai J, Feng S, Yang B. Structure, photochemistry and magnetic properties of tetrahydrogenated Schiff base chromium(III) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 140:437-443. [PMID: 25637815 DOI: 10.1016/j.saa.2015.01.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 12/30/2014] [Accepted: 01/11/2015] [Indexed: 06/04/2023]
Abstract
Four mononuclear chromium(III) complexes [Cr(L(1))(en)]Br0.3Cl0.7 (1), [Cr(L(1))(pr)]Cl (2), [Cr(L(2))(en)]ClO4 (3), [Cr(L(2))(pr)]Cl (4) along with one dinuclear μ-methoxo [Cr(μ-OMe)(L1)]2 (5) were synthesized (en=1,2-ethanediamine, pr=1,3-diaminopropane H2L(1)=Tetrahydrosalen=H2[H4]salen=N,N'-bis(2-hydroxybenzyl)-1,2-ethanediamine, H2L(2)=Tetrahydrosalpr=H2[H4]salpr=N,N'-bis(2-hydroxybenzyl)-1,3-diaminopropane). The competitive reactions in the presence of EDTA were carried out and the first-order rate constants k(1)=(5.2±0.2)×10(-3) h(-1)<k(2)=(6.7±0.3)×10(-3) h(-1)<k(3)=(8.0±0.1)×10(-3) h(-1)<k(4)=(9.5±0.2)×10(-3) h(-1) were obtained by spectroscopic measurements. In addition, photo-induced decomposition was monitored under irradiation of xenon lamp. The sequence of first-order rate constants is k'(1)=(4±0.1)×10(-4) s(-1)<k'(2)=(6±0.3)×10(-4) s(-1)<k'(3)=(1.1±0.2)×10(-3) s(-1)<k'(4)=(1.4±0.2)×10(-3) s(-1), which is in accordance with that of kinetics studies with EDTA. Dinuclear complex 5 exhibits a strong antiferromagnetic coupling with the J=-10.8 cm(-1).
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Affiliation(s)
- Bin Liu
- Institute of Molecular Science, Key Laboratory of Chemical Biology of Molecular Engineering of Education Ministry, Shanxi University, Taiyuan 030006, China.
| | - Jie Chai
- Institute of Molecular Science, Key Laboratory of Chemical Biology of Molecular Engineering of Education Ministry, Shanxi University, Taiyuan 030006, China
| | - SiSi Feng
- Institute of Molecular Science, Key Laboratory of Chemical Biology of Molecular Engineering of Education Ministry, Shanxi University, Taiyuan 030006, China
| | - BinSheng Yang
- Institute of Molecular Science, Key Laboratory of Chemical Biology of Molecular Engineering of Education Ministry, Shanxi University, Taiyuan 030006, China.
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Clément N, Toussaint C, Rogez G, Loose C, Kortus J, Brelot L, Choua S, Dagorne S, Turek P, Welter R. Novel CrIII dinuclear complexes supported by salicyloylhydrazono dithiolane and dithiane ligands: Synthesis, stability, crystal structures and magnetic properties. Dalton Trans 2010; 39:4579-85. [DOI: 10.1039/c001057j] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu Q, Pan S, Wang D. Di-μ-hydroxido-bis-({2,2'-[propane-1,3-diylbis(nitrilo-methyl-idyne)]diphenolato}iron(III)) dimethyl-formamide disolvate. Acta Crystallogr Sect E Struct Rep Online 2009; 65:m305. [PMID: 21582083 PMCID: PMC2968628 DOI: 10.1107/s1600536809005091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Accepted: 02/12/2009] [Indexed: 11/22/2022]
Abstract
The structure of the title compound, [Fe2(C17H16N2O2)2(OH)2]·2C3H7N, consists of centrosymmetric dimeric units in which crystallographically equivalent FeIII ions are doubly bridged by hydroxide groups. Each FeIII center in the complex has a six-coordinated distorted cis-FeN2O4 octahedral geometry.
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