期刊
RUSSIAN CHEMICAL BULLETIN
卷 60, 期 3, 页码 449-455出版社
SPRINGER
DOI: 10.1007/s11172-011-0071-5
关键词
redox isomerism; o-semiquinone; cobalt complex; IR spectroscopy; ESR spectroscopy; magnetic properties; X-ray diffraction study; precision calorimetry
资金
- Russian Foundation for Basic Research [09-03-12241-ofi_m]
- Russian Federation [NSh-7065.2010.3]
- Presidium of the Russian Academy of Sciences [7, 21]
The bistable cobalt complex containing two symmetrical 3,6-di-tert-butyl-o-benzoquinone and one 1,10-phenanthroline moieties as ligands (1) was synthesized. Complex 1 was isolated in the individual state and characterized by IR and ESR spectroscopy, X-ray diffraction, magnetochemical studies, and precision calorimetry. A change in temperature causes the reversible metal-ligand electron transfer and spin crossover (redox isomerism) in complex 1 in the crystalline state. The redox-isomeric transformation at similar to 250 K is accompanied by the phase transition. The structural study at two temperatures confirmed the changes in the molecular and crystal structure associated with the redox-isomeric transformation.
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