Binuclear bis(o-semiquinonato)cobalt(II) complexes with bridging tetradentate N-donor ligand

被引：11
|
作者：
Zolotukhin, Alexey A. [1 ,2 ]
Bubnov, Michael P. [1 ,2 ]
Bogomyakov, Artem S. [3 ]
Protasenko, Natalia A. [1 ]
Fukin, Georgy K. [1 ,2 ]
Grishin, Ivan D. [2 ]
Cherkasov, Vladimir K. [1 ,2 ]
机构：
[1] RAS, GA Razuvaev Inst Organometall Chem, Nizhnii Novgorod 603950, Russia
[2] NI Lobachevsky State Univ Nizhny Novgorod, Nizhnii Novgorod 603950, Russia
[3] RAS, SB, Int Tomog Ctr, Novosibirsk 630090, Russia
来源：
INORGANICA CHIMICA ACTA | 2016年 / 440卷
关键词：
Cobalt; o-Semiquinonato ligands; Magnetic properties; INTRAMOLECULAR ELECTRON-TRANSFER; TRANSITION-METAL-COMPLEXES; O-QUINONE COMPLEXES; VALENCE TAUTOMERISM; COBALT COMPLEXES; X-RAY; CATECHOLATE LIGANDS; REDOX ISOMERISM; SEMIQUINONE; SERIES;
D O I：
10.1016/j.ica.2015.10.031
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Three novel binuclear high spin cobalt(II) complexes containing two bis(o-semiquinonato) cobalt fragments bridged by tetradentate N-donor ligand (1,2-bis(pyridin-2-ylmethylene) hydrazine) were synthesized. The complexes differ one from another by substituents in the o-semiquinonato ligands. The obtained complexes were characterized by IR-spectroscopy and variable temperature magnetic susceptibility measurements. Crystalline and molecular structures of complex bearing the anion-radical of 4,5-(N,N'-piperazino)-3,6-di-tert-butyl-o-quinone was established by X-ray structural analysis. According to obtained magnetic data all complexes demonstrate antiferromagnetic ligand-ligand, metal-ligand and metal-metal exchange interactions. (C) 2015 Elsevier B.V. All rights reserved.
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页码：16 / 20
页数：5
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