Study of Spin-Crossover in Iron(II) Complexes with 2,6-Bis(4,5-Dimethyl-1H-Imidazol-2-yl)Pyridine and closo-Borate Anions

被引：8

作者：

Ivanova, A. D. ^{[1
]}

Lavrenova, L. G. ^{[1
]}

Korotaev, E., V ^{[1
]}

Trubina, S., V ^{[1
]}

Tikhonov, A. Ya ^{[2
]}

Kriventsov, V. V. ^{[3
]}

Petrov, S. A. ^{[4
]}

Zhizhin, K. Yu ^{[5
]}

Kuznetsov, N. T. ^{[5
]}

机构：

[1] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Branch, Novosibirsk 630090, Russia

[3] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia

[4] Russian Acad Sci, Inst Solid State Chem & Mechanochem, Siberian Branch, Novosibirsk 630128, Russia

[5] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2022年 / 67卷 / 08期

基金：

俄罗斯科学基金会;

关键词：

synthesis of coordination compounds; iron(II); 2,6-bis(4,5-dimethyl-1H-imidazol-2-yl)pyridine; closo-borate(2-) anions; spin-crossover (1)A(1) <-> T-5(2); TRANSITION MOLECULAR MATERIALS; COORDINATION-COMPOUNDS; 1,2,4-TRIAZOLE; CHEMISTRY; THERAPY;

D O I：

10.1134/S0036023622080174

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

New iron(II) coordination compounds with 2,6-bis(4,5-dimethyl-1H-imidazol-2-yl)pyridine (L) and closo-borate(2-) anions [FeL2]B10H10 center dot 2H(2)O and [FeL2]B12H12 center dot H2O have been synthesized. The compounds have been identified and studied by CHN analysis, electron spectroscopy (diffuse reflection spectroscopy), IR, Mossbauer, and EXAFS spectroscopies, X-ray powder diffraction, and static magnetic susceptibility. The structures of the coordination knots of complexes [FeL2]B10H10 center dot 2H(2)O and [FeL2]B12H12 center dot H2O has been obtained by modeling the EXAFS spectra. The ligand is coordinated by the iron(II) ion in a tridentatecyclic manner by two nitrogen atoms of imidazole cycles and a nitrogen atom of pyridine to form the FeN6 coordination knot. The study of the temperature dependence of the magnetic susceptibility in the range of 80-500 K has showed that the high-temperature spin-crossover (1)A(1) <-> T-5(2) manifests itself in the obtained compounds.

引用

页码：1158 / 1168

页数：11

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