Practical Synthesis and Properties of Seleno- and Tellurocarbonyl Complexes

通过硒和碲原子转移反应，得到了第一个五坐标的硒代羰基配合物[RuCl_2(CSe)(H_2IMes)(PCy_3)] （H_2IMes=1,3-dimesitylimidazolin-2-ylidene）和碲代羰基配合物[RuCl_2(CTe)(H_2IMes)(dmap)_2] （3-CTe; dmap=4-（二甲氨基）吡啶）。对全系列硫基羰基配合物的系统分析表明，碲羰基配合物3-CTe是一种潜在的碲原子转移试剂。

The first five-coordinate selenocarbonyl complex, [RuCl_2(CSe)(H_2IMes)(PCy_3)] (H_2IMes=1,3-dimesitylimidazolin-2-ylidene), and the tellurocarbonyl complex [RuCl_2(CTe)(H_2IMes)(dmap)_2] (3-CTe ; dmap=4-(dimethylamino)pyridine) was obtained by selenium and tellurium atom transfer reaction to the carbido complex [RuCl_2(C)(H_2IMes)(PCy_3)]. Systematic elucidation of the complete series of chalcogenocarbonyl complexes revealed that tellurocarbonyl complex 3-CTe is a potential tellurium atom transfer reagent.