Spin crossover in iron(II) complexes with new ligand 2,6-bis(4,5-dimethyl-1H-imidazole-2-yl)pyridine

Spin crossover in iron(II) complexes with new ligand 2,6-bis(4,5-dimethyl-1H-imidazole-2-yl)pyridine Full article

Journal

Inorganica Chimica Acta
ISSN: 1873-3255 , E-ISSN: 0020-1693

Output data

Year: 2022, Volume: 532, Article number : 120746, Pages count : 10 DOI: 10.1016/j.ica.2021.120746

Tags

Iron(II) complexes, 2,6-bis(4,5-dimethyl-1H-imidazol-2-yl), pyridine, EXAFS spectroscopy, Mossbauer spectroscopy, Spin crossover, Crystal structure

Authors

Ivanova A.D. ¹ , Korotaev E.V. ¹ , Komarov V.Yu. ¹ , Sukhikh T.S. ¹ , Trubina S.V. ¹ , Sheludyakova L.A. ¹ , Petrov S.A. ² , Tikhonov A.Ya. ³ , Lavrenova L.G. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, Russia
2	Institute of Solid State Chemistry and Mechanochemistry SB RAS, 630128 Novosibirsk, Russia
3	Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 630090 Novosibirsk, Russia

Iron(II) coordination compounds containing a new ligand, 2,6-bis(4,5-dimethyl-1H-imidazol-2-yl)pyridine (L), of composition [FeL2](NO3)2·H2O (1·H2O), [FeL2](ClO4)2·0.5H2O (2·0.5H2O), [FeL2]SO4·0.5H2O (3·0.5H2O), or [FeL2](ReO4)2·2H2O (4·2H2O) have been synthesized and studied by UV–vis (diffuse reflectance), infrared, extended X-ray absorption fine structure (EXAFS), and Mössbauer spectroscopies, as well as X-ray diffraction and static magnetic susceptibility methods. The structure of a copper(II) complex with L of composition [CuL2]SO4·3H2O has been successfully determined. The analysis of the μeff(T) dependence in the temperature range of 80–520 K showed that complexes [FeL2](NO3)2·H2O, [FeL2](ClO4)2·0.5H2O, and [FeL2](ReO4)2·2H2O and their dehydrated counterparts are subject to high-temperature spin crossover 1A1 ↔ 5T2.

Ivanova A.D. , Korotaev E.V. , Komarov V.Y. , Sukhikh T.S. , Trubina S.V. , Sheludyakova L.A. , Petrov S.A. , Tikhonov A.Y. , Lavrenova L.G.
Spin crossover in iron(II) complexes with new ligand 2,6-bis(4,5-dimethyl-1H-imidazole-2-yl)pyridine
Inorganica Chimica Acta. 2022. V.532. 120746 :1-10. DOI: 10.1016/j.ica.2021.120746 WOS Scopus РИНЦ OpenAlex

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Scopus:	2-s2.0-85121223273
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