High-Temperature Spin Crossover in Iron(II) Complexes with 2,6-Bis(1<i>H</i>-imidazol-2-yl)pyridine
Ludmila G. Lavrenova,
Olga G. Shakirova,
Evgeniy V. Korotaev,
Svetlana V. Trubina,
Alexsei Ya. Tikhonov,
Irina A. Os’kina,
Sergey A. Petrov,
Konstantin Yu. Zhizhin,
Nikolay T. Kuznetsov
Affiliations
Ludmila G. Lavrenova
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia
Olga G. Shakirova
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia
Evgeniy V. Korotaev
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia
Svetlana V. Trubina
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia
Alexsei Ya. Tikhonov
N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 9, 630090 Novosibirsk, Russia
Irina A. Os’kina
N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 9, 630090 Novosibirsk, Russia
Sergey A. Petrov
Institute of Solid State Chemistry, Siberian Branch, Russian Academy of Sciences, Kutateladze Street 18, 630128 Novosibirsk, Russia
Konstantin Yu. Zhizhin
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Avenue 31, 119991 Moscow, Russia
Nikolay T. Kuznetsov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Avenue 31, 119991 Moscow, Russia
Novel iron(II) coordination compounds containing a ligand 2,6-bis(1H-imidazol-2-yl)pyridine (L), having such a composition as [FeL2]SO4·0.5H2O, [FeL2]Br2·H2O, [FeL2](ReO4)2, [FeL2]B10H10∙H2O, [FeL2]B12H12∙1.5H2O 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 μeff(T) dependence in the temperature range of 80–600 K have shown that all the obtained complexes exhibit a high-temperature spin crossover 1A1 ↔ 5T2.
