Author:
Ivanova A. D.,Lavrenova L. G.,Korotaev E. V.,Trubina S. V.,Tikhonov A. Ya.,Kriventsov V. V.,Petrov S. A.,Zhizhin K. Yu.,Kuznetsov N. T.
Abstract
Abstract
New iron(II) coordination compounds with 2,6-bis(4,5-dimethyl-1H-imidazol-2-yl)pyridine (L) and closo-borate(2–) anions [FeL2]B10H10⋅2H2O and [FeL2]B12H12⋅H2O have been synthesized. The compounds have been identified and studied by CHN analysis, electron spectroscopy (diffuse reflection spectroscopy), IR, Mössbauer, and EXAFS spectroscopies, X-ray powder diffraction, and static magnetic susceptibility. The structures of the coordination knots of complexes [FeL2]B10H10⋅2H2O and [FeL2]B12H12⋅H2O has been obtained by modeling the EXAFS spectra. The ligand is coordinated by the iron(II) ion in a tridentate-cyclic manner by two nitrogen atoms of imidazole cycles and a nitrogen atom of pyridine to form the FeN6 coordination knot. The study of the temperature dependence of the magnetic susceptibility in the range of 80–500 K has showed that the high-temperature spin-crossover 1А1 ↔ 5Т2 manifests itself in the obtained compounds.
Subject
Inorganic Chemistry,Physical and Theoretical Chemistry,Materials Science (miscellaneous)
Reference46 articles.
1. Spin Crossover in Transition Metal Compounds I–III, Ed. by P. Gutlich and H. Goodwin (Springer, 2004).
2. M. A. Halcrow, Spin-Crossover Materials Properties and Applications (Wiley & Sons, 2013).
3. O. Kahn, J. Krober, and C. Jay, Adv. Mater. 4, 718 (1992). https://doi.org/10.1002/adma.19920041103
4. O. G. Shakirova and L. G. Lavrenova, Crystals 10, 843 (2020). https://doi.org/10.3390/cryst10090843
5. M. Shatruk, H. Phan, B. A. Chrisostomo, and A. Suleimenova, Coord. Chem. Rev. 289, 62 (2015). https://doi.org/10.1016/j.ccr.2014.09.018
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