STRUCTURAL DEPENDENCIES OF PYRAMIDAL SULFUR INVERSION IN HALOGENOTRICARBONYLRHENIUM(I) COMPLEXES OF MONO-(ORTHO-METHYLTHIO) AND BIS-(ORTHO-METHYLTHIO) DERIVATIVES OF TRIPHENYLPHOSPHINE

被引：12

作者：

ABEL, EW ^{[1
]}

ELLIS, D ^{[1
]}

ORRELL, KG ^{[1
]}

SIK, V ^{[1
]}

机构：

[1] UNIV EXETER,DEPT CHEM,EXETER EX4 4RJ,DEVON,ENGLAND

来源：

POLYHEDRON | 1991年 / 10卷 / 14期

关键词：

D O I：

10.1016/S0277-5387(00)83770-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of new halogenotricarbonylrhenium(I) complexes of the hybrid sulphurphosphine ligands [omicron-(methylthio)phenyl]diphenylphosphine (SP) and bis-[omicron-(methylthio)phenyl]phenylphosphine (DSP) have been prepared and characterized. Both ligands act as sulphur/phosphorus mono-chelates, despite the potential tridenticity of DSP. No evidence of an intramolecular methylthio exchange process involving the uncoordinated and coordinated SMe groups was detected in the [ReX(CO)3(DSP)] (X = Cl, Br, I) complexes, in contrast to the analogous [PdX2(DSP)] and [PtX2(DSP)] complexes. Solution NMR studies revealed pyramidal inversion of the coordinated sulphur atoms in the [ReX(CO)3(SP)] and [ReX(CO)3(DSP)] complexes, with energy barriers [DELTA-G++(298 K)] in the range 51-55 kJ mol-1.

引用

页码：1603 / 1609

页数：7