Binuclear Oxidovanadium(IV) Complex with the Bridging Chloranilate Ligand: Synthesis and Magnetic Properties


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Аннотация

The binuclear oxidovanadium(IV) complex [VO(Dbbpy)Cl(Ca)Cl(Dbbpy)VO] (I) is synthesized by the reaction of [VO(Dbbpy)(H2O)Cl2] (Dbbpy is 4,4'-di-tert-butyl-2,2'-bipyridyl) with chloranilic acid H2Ca in acetonitrile in the presence of Et3N in a yield of 79%. Complex I is reduced at Е1/2 = –842 mV (vs. Ag/AgCl), which is shown by cyclic voltammetry for a solid sample using the paste electrode. The EPR spectra and magnetochemical measurements for complex I confirm the existence of two paramagnetic vanadium(IV) centers with the total spin S = 1 and the antiferromagnetic character of the exchange interaction between the centers.

Авторлар туралы

I. Fomenko

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences

Email: gushchin@niic.nsc.ru
Ресей, Novosibirsk, 630090

V. Nadolinnyi

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences

Email: gushchin@niic.nsc.ru
Ресей, Novosibirsk, 630090

N. Efimov

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

Email: gushchin@niic.nsc.ru
Ресей, Moscow, 119991

V. Kokovkin

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences; Novosibirsk National Research State University

Email: gushchin@niic.nsc.ru
Ресей, Novosibirsk, 630090; Novosibirsk, 630090

A. Gushchin

Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences; Novosibirsk National Research State University

Хат алмасуға жауапты Автор.
Email: gushchin@niic.nsc.ru
Ресей, Novosibirsk, 630090; Novosibirsk, 630090

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