Synchronous pyramidal inversion of chalcogen atom pairs in trimethylplatinum(<scp>IV</scp>)halide complexes with dithia-and diselena-cyclopentanes. X-Ray crystal structure of [(PtIMe<sub>3</sub>)<sub>2</sub>(Me<sub>2</sub>CCH<sub>2</sub>SeSeCH<sub>2</sub>)]
作者:Edward W. Abel、Pramod K. Mittal、Keith G. Orrell、Vladimir Šik、T. Stanley Cameron
DOI:10.1039/c39840001312
日期:——
Dinuclear PtIVcomplexes of type [(PtXMe3)2(Me2[graphic omitted]H2)](E = S, Se, X = halogen)have been synthesised and shown by X-ray analysis to involve the cyclic ligand bridging the two PtIV atoms, with the Pt2X2 moiety adopting a highly bent geometry; 1H n.m.r. studies have identified a relatively slow, synchronous inversion of the co-ordinated chalcogen atom pair; ΔG‡ data for the process are in
合成了[(PtXMe 3)2(Me 2 [省略图] H 2)](E = S,Se,X =卤素)类型的双核Pt IV配合物,并通过X射线分析表明其涉及环状配体桥联两个Pt IV原子,Pt 2 X 2部分采用高度弯曲的几何形状;1 H nmr研究已经确定了协调的硫属元素原子对的相对缓慢,同步反转。Δ ģ ‡用于处理数据的范围是66-75千焦耳摩尔-1,这些值是,在大多数情况下,约比更正常的单点反演高20 kJ mol –1。