ESR study of paramagnetic derivatives of sterically hindered di-o-quinone with the tetrathiafulvalene bridge

被引：16

作者：

Kuropatov, V. A. ^{[1
]}

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

Poddel'sky, A. I. ^{[1
]}

Cherkasov, V. K. ^{[1
]}

Abakumov, G. A. ^{[1
]}

机构：

[1] Russian Acad Sci, GA Razuvaev Inst Organometall Chem, Nizhnii Novgorod 603950, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2010年 / 59卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

4,4 ',7,7 '-tetra-tert-butyl-2,2 '-bis-1,3-benzodithiolidene-5,5 ',6,6 '-tetraone; tetrathiafulvalene; ESR spectroscopy; metal o-semiquinone and catecholate complexes; SEMIQUINONE METAL-COMPLEXES; MAGNETIC-PROPERTIES; LIGANDS; COPPER;

D O I：

10.1007/s11172-010-0299-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The paramagnetic derivatives of 4,4',7,7'-tetra-tert-butyl-2,2'-bis-1,3-benzodithiol-5,5',6,6'-tetraone (1), viz., radical anion salts of the alkali metals (Li, Na, K) and cobaltocenium cations, chelated mono-o-semiquinone complexes with different metal fragments (Tl, TlMe2, SnPh3, Mn(CO)(4), Mn(PPh3)(CO)(3)), a number of copper(I) complexes with sterically hindered phosphines as well as binuclear heterometallic derivatives of triphenylantimony(V) o-semiquinone-catecholate with the analogous paramagnetic centers, were studied by ESR spectroscopy. The reaction of di-o-quinone 1 with sodium amalgam resulted in the formation of all reduced forms including quinone-semiquinone, disemiquinone, semiquinone-catecholate, and dicatecholate. A radical cation with the unpaired electron localized on the tetrathiafulvalene (TTF) fragment, which resulted from the oxidation of di-o-quinone 1, was detected by ESR spectroscopy.

引用

页码：1698 / 1706

页数：9

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