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 Научная публикация

Журнал

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

Вых. Данные

Год: 2022, Том: 532, Номер статьи : 120746, Страниц : DOI: 10.1016/j.ica.2021.120746

Ключевые слова

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

Авторы

Ivanova Alina D. ¹ , Korotaev Evgeniy V. ¹ , Komarov Vladislav Yu. ¹ , Sukhikh Taisiya S. ¹ , Trubina Svetlana V. ¹ , Sheludyakova Liliya A. ¹ , Petrov Sergey A. ² , Tikhonov Alexsei Ya. ³ , Lavrenova Lyudmila G. ¹

Организации

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

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. © 2021 Elsevier B.V.

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 . DOI: 10.1016/j.ica.2021.120746 WOS Scopus

Web of science	WOS:000799223700010
Scopus	2-s2.0-85121223273
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