Oxidation of Organoplatinum(II) by Coordinated Dimethylsulfoxide: Metal−Metal Bonded, Dinuclear, Liquid-Crystalline Complexes of Platinum(III)
作者:Amedeo Santoro、Marcin Wegrzyn、Adrian C. Whitwood、Bertrand Donnio、Duncan W. Bruce
DOI:10.1021/ja105469a
日期:2010.8.11
Reaction of [PtCl(2)(dmso)(2)] with 2,5-(dialkoxyphenyl)pyridine in HOAc leads to a dinuclear, acetate-bridged, metal-metal bonded complex of platinum(III); dmso in the presence of acid is found to be responsible for the oxidation. The dimer is analogous structurally to Pd(III) dimers implicated in catalytic acetoxylation. Platinum dimers with longer alkoxy chains are shown to be unique examples of
[PtCl(2)(dmso)(2)] 与 2,5-(二烷氧基苯基)吡啶在 HOAc 中的反应生成双核、乙酸酯桥接、金属-金属键合的铂 (III) 络合物;发现酸存在下的 dmso 是氧化的原因。该二聚体在结构上类似于参与催化乙酰氧基化的 Pd(III) 二聚体。具有更长烷氧基链的铂二聚体被证明是铂 (III) 液晶的独特例子。