2-Mercapto-orotic acid as a bridging chelate in a Re(III)Re(IV) dimer with a metal-metal bond

被引：2
|
作者：
Mukiza, J. [1 ]
Gerber, T. I. A. [1 ]
Hosten, E. [1 ]
机构：
[1] Nelson Mandela Metropolitan Univ, Dept Chem, Port Elizabeth, South Africa
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2016年 / 67卷
基金：
新加坡国家研究基金会;
关键词：
Rhenium (III/IV); 2-Mercapto-orotic add; Chelate-bridged; Multiple bond; RE-RE BOND; COMPLEXES; RHENIUM(IV); BINUCLEAR; CRYSTAL; OXO;
D O I：
10.1016/j.inoche.2016.03.008
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reaction of [ReCl3(MeCN)(PPh3)(2)] with 2-mercapto-orotic acid (H(2)moa) in ethanol led to the isolation of the multiply-bridged dimer (mu-Cl)(mu-O)(mu-moa)(2)[(ReReIV)-Re-III(PPh3)](2) (1). The compound has a Re-Re bond distance of 2.5425(7) angstrom with a formal bond order of 2.5. The dianionic bridging ligands moa(2-) coordinate bidentately via a neutral pyrimidine nitrogen and carboxylate oxygen to one Re ion, and monodentately through a thiolate sulfur to the second metal ion. Complex 1 was characterized by FTIR, electronic spectroscopy, cyclic voltammetry, microanalysis and single crystal X-ray diffraction. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：64 / 66
页数：3
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