Mono- and Binuclear Dimethylthallium(III) Complexes with o-Benzoquinone-TTF-o-Benzoquinone Ligand; Synthesis, Spectroscopy and X-ray Study

被引：14

作者：

Klementieva, Svetlana V. ^{[1
]}

Kuropatov, Vyacheslav A. ^{[1
]}

Fukin, Georgii K. ^{[1
]}

Romanenko, Galina V. ^{[2
]}

Bogomyakov, Artem S. ^{[2
]}

Cherkasov, Vladimir K. ^{[1
]}

Abakumov, Gleb A. ^{[1
]}

机构：

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

[2] Russian Acad Sci, Int Tomog Ctr, Siberian Branch, Novosibirsk 630090, Russia

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2011年 / 637卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

O ligands; o-Quinone; Tetrathiafulvalene (TTF); Thallium; X-ray diffraction; Magnetic properties; TRANSITION-METAL-COMPLEXES; TETRATHIAFULVALENE-FUNCTIONALIZED PHOSPHINE; INTRAMOLECULAR CHARGE-TRANSFER; PI-ELECTRON DONORS; MAGNETIC-PROPERTIES; MOLECULAR CONDUCTORS; CRYSTAL-STRUCTURES; BEDT-TTF; CO-II; FE-II;

D O I：

10.1002/zaac.201000319

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new mono- and binuclear semiquinonato dimethylthallium complexes (Q-TTF-SQ)TlMe2 (1) and Me2Tl(SQ-TTF-SQ)TlMe2 (2) based on di-o-quinone with tetrathiafulvalene (TTF) bridge, 4,4',7,7'-tetra-tert-butyl-2,2'-bis-1,3-benzodithiol-5,5',6,6'-tetraone Q-TTF-Q, were synthesized by the reaction between corresponding mono- and di-sodium semiquinonates (Q-TTF-SQ)Na and Na(SQ-TTF-SQ)Na and one or two equivalents of Me2TlCl, respectively. The same products could be obtained by the interaction of Q-TTF-Q with one or two equivalents of Me3Tl. Complexes 1 and 2 were characterized by IR and electronic absorption spectroscopy, EPR, and magnetic measurements. The molecular structures of 1 and 2 were determined by single-crystal X-ray diffraction. It was found that mono-semiquinonato derivative 1 partially disproportionates into Q-TTF-Q and binuclear complex 2 in THF solution. According to variable temperature magnetic susceptibility measurements and EPR data, compound 1 reveals paramagnetic behavior with an S = 1/2 state in the range 50-300 K, whereas compound 2 has an S = 0 ground state as the consequence of antiferromagnetic coupling between serniquinonato moieties realized through the TTF-bridge.

引用

页码：232 / 241

页数：10

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