Spin Crossover and Thermochromism in Iron(II) Complexes with 2,6-Bis(1H-imidazol-2-yl)-4-methoxypyridine

Spin Crossover and Thermochromism in Iron(II) Complexes with 2,6-Bis(1H-imidazol-2-yl)-4-methoxypyridine Full article

Journal

International Journal of Molecular Sciences
ISSN: 1661-6596

Output data

Year: 2023, Volume: 24, Number: 12, Article number : 9853, Pages count : 1 DOI: 10.3390/ijms24129853

Tags

synthesis; complexes; iron(II); 2,6-bis(1H-imidazol-2-yl)-4-methoxypyridine; spectroscopy; spin crossover

Authors

Shakirova Olga G. ^1,2 , Os’kina Irina A. ³ , Korotaev Evgeniy V. ¹ , Petrov Sergey A. ⁴ , Kuratieva Natalia V. ¹ , Tikhonov Alexsei Ya. ³ , Lavrenova Lyudmila G. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry of the Siberian Branch of the RAS
2	Department of Chemistry and Chemical Technologies, Faculty of Machinery and Chemical Technologies, Federal State Budget Institution of Higher Education, Komsomolsk-na-Amure State University
3	N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences
4	Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences

New iron(II) complexes with 2,6-bis(1H-imidazol-2-yl)-4-methoxypyridine (L) of the composition [FeL2]An∙mH2O (A = SO42−, n = 1, m = 2 (I); A = ReO4−, n = 2, m = 1 (II); A = Br−, n = 2, m = 2 (III)) have been synthesized and investigated. To determine the coordination ability of the ligand, a single crystal of a copper(II) complex of the composition [CuLCl2] (IV) was obtained and studied by X-ray technique. Compounds I–III were studied using methods of X-ray phase analysis, electron (diffuse reflection spectra), infrared and Mössbauer spectroscopy, static magnetic susceptibility. The study of the µeff(T) dependence showed that the 1A1 ↔ 5T2 spin crossover manifests itself in the compounds. The spin crossover is accompanied by thermochromism: there is a distinct color change orange ↔ red-violet.

Shakirova O.G. , Os’kina I.A. , Korotaev E.V. , Petrov S.A. , Kuratieva N.V. , Tikhonov A.Y. , Lavrenova L.G.
Spin Crossover and Thermochromism in Iron(II) Complexes with 2,6-Bis(1H-imidazol-2-yl)-4-methoxypyridine
International Journal of Molecular Sciences. 2023. V.24. N12. 9853 :1-1. DOI: 10.3390/ijms24129853 WOS Scopus РИНЦ

Submitted:	Apr 11, 2023
Accepted:	Jun 4, 2023
Published online:	Jun 7, 2023
Published print:	Jul 1, 2023

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