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

被引：11
|
作者：
Fomenko, I. S. [1 ]
Nadolinnyi, V. A. [1 ]
Efimov, N. N. [2 ]
Kokovkin, V. V. [1 ,3 ]
Gushchin, A. L. [1 ,3 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
[3] Novosibirsk Natl Res State Univ, Novosibirsk 630090, Russia
来源：
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY | 2019年 / 45卷 / 11期
基金：
俄罗斯基础研究基金会; 俄罗斯科学基金会;
关键词：
oxidovanadium(IV); chloranilic acid; magnetic susceptibility; voltammetry; EPR spectroscopy; OXIDATIVE BROMINATION; CATALYTIC-ACTIVITY; CRYSTAL-STRUCTURE; VANADIUM COMPLEXES; HYDROGEN-PEROXIDE; OXOVANADIUM(IV) COMPLEXES; ACID; ELECTROCHEMISTRY; NITROGENASE; DERIVATIVES;
D O I：
10.1134/S1070328419110022
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The binuclear oxidovanadium(IV) complex [VO(Dbbpy)Cl(Ca)Cl(Dbbpy)VO] (I) is synthesized by the reaction of [VO(Dbbpy)(H2O)Cl-2] (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 E-1/2 = -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.
引用
收藏
页码：776 / 781
页数：6
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