High-Temperature Spin Crossover in Iron(II) Complexes with 2,6-Bis(1H-imidazol-2-yl)pyridine

Novel iron(II) coordination compounds containing a ligand 2,6-bis(1H-imidazol-2-yl)pyridine (L), having such a composition as [FeL(2)]SO(4)·0.5H(2)O, [FeL(2)]Br(2)·H(2)O, [FeL(2)](ReO(4))(2), [FeL(2)]B(10)H(10)∙H(2)O, [FeL(2)]B(12)H(12)∙1.5H(2)O had been synthesized and studied using UV-Vis (diffuse...

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Detalles Bibliográficos
Autores principales: Lavrenova, Ludmila G., Shakirova, Olga G., Korotaev, Evgeniy V., Trubina, Svetlana V., Tikhonov, Alexsei Ya., Os’kina, Irina A., Petrov, Sergey A., Zhizhin, Konstantin Yu., Kuznetsov, Nikolay T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415506/
https://www.ncbi.nlm.nih.gov/pubmed/36014332
http://dx.doi.org/10.3390/molecules27165093
Descripción
Sumario:Novel iron(II) coordination compounds containing a ligand 2,6-bis(1H-imidazol-2-yl)pyridine (L), having such a composition as [FeL(2)]SO(4)·0.5H(2)O, [FeL(2)]Br(2)·H(2)O, [FeL(2)](ReO(4))(2), [FeL(2)]B(10)H(10)∙H(2)O, [FeL(2)]B(12)H(12)∙1.5H(2)O had been synthesized and studied using UV-Vis (diffuse reflectance), infrared, extended X-ray absorption fine structure (EXAFS), and Mössbauer spectroscopy methods, as well as X-ray diffraction and static magnetic susceptibility methods. The analysis of the μ(eff)(T) dependence in the temperature range of 80–600 K have shown that all the obtained complexes exhibit a high-temperature spin crossover (1)A(1) ↔ (5)T(2).

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