Poly(mercaptoimidazolyl)borate Complexes of Cadmium and Mercury
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- 作者：Daniel Rabinovich
- 关键词：Bis(mercaptoimidazolyl)borate ligands ; Cadmium ; Dithiocarbamate complexes ; Mercury ; Methylation ; Soft scorpionates ; Thione complexes ; Thiolate complexes ; Tris(mercaptoimidazolyl)borate ligands
- 刊名：Structure & Bonding
- 出版年：2006
- 出版时间：2006
- 年：2006
- 卷：120
- 期：1
- 页码：pp.143-162
- 全文大小：428 KB
文摘
The coordination chemistry of bis- and tris(mercaptoimidazolyl)borate ligands with both main-group and transition metals is rapidly expanding. Usually regarded as soft analogues of the popular poly(pyrazolyl)borates (scorpionates), these sulfur-donor ligands display a good affinity for soft metals such as cadmium and mercury. They are readily prepared in high yield and their metal complexes are usually air-stable and exhibit good solubility and simple spectroscopic features in solution and good crystallinity in the solid state. This review will describe the syntheses, structures and reactivity of cadmium and mercury compounds supported by this family of ligands, ranging from simple homoleptic M(BmR)2 and M(TmR)2 derivatives (M = Cd, Hg) to a variety of well-defined (TmR)MX complexes (X = halide, thiolate, etc.). Comparisons with known zinc analogues will also be drawn whenever appropriate, particularly with the goal of establishing trends in structural features, reactivity and physical or spectroscopic properties.