Unique properties of transition metal quinone complexes of the MQ3 series

被引：321

作者：

Pierpont, CG ^{[1
]}

机构：

[1] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

来源：

COORDINATION CHEMISTRY REVIEWS | 2001年 / 219卷

基金：

美国国家科学基金会;

关键词：

transition metal complexes; o-benzoquinones; MQ3; series;

D O I：

10.1016/S0010-8545(01)00342-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Transition metal complexes of ligands derived from o-benzoquinones have been shown to exhibit unique versatility in their electronic, structural and magnetic properties. Examples of these properties are described for complexes of the MQ(3) series with ligands coordinated in the form of semiquinonate (SQ) radical anions, catecholate dianions (Cat), and unreduced benzoquinones (BQ). Electrochemical activity may occur at either the metal or ligand; SQ complexes exhibit temperature dependent magnetic properties resulting from M-SQ, SQ-SQ, and intermolecular exchange coupling; equilibria between M-I(SQ)/M-II(Cat) redox isomers has been observed to occur in solution and in the solid state; charge localization has resulted in the formation of complexes containing mixed-valence ligands; strong pi donation from Cat oxygens has been found to stabilize metal ions in unusually high oxidation states. Examples of these properties from among compounds of the MQ(3) series are described. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：415 / 433

页数：19

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