Scrambling of dithioacid ligands in some (η-cyclopentadienyl)nitrosyl-molybdenum and -tungsten derivatives
作者:Wanda De Oliveira、Jean-Louis Migot、Miriam Bernardes Gomes De Lima、Jean Sala-Pala、Jacques-E. Guerchais、Jean-Yves Le Gall
DOI:10.1016/0022-328x(85)80029-2
日期:1985.4
which contain a bidentate dithiocarbamato ligand and a monodentate dithiophosphato group, are stereochemically rigid. In order to relate the coordination mode of the PS2(OR)2 ligand to the 31P NMR chemical shift, other complexes including dicarbonyl [M(η-C5H5)(CO)2(SS)], tricarbonyl [M(η-C5H5)(CO)3(SS)], nitrosyl [M(NO)(SS)3] and dinitrosyl [M(NO)2(SS)2] derivatives were also studied.
配合物[M(η-C 5 H ^ 5)(否)我2 ] 2(M =钼,钨)与dithioacid配体反应(SS)-(SS= S 2 P(OR)2,S 2 CNR 2,S 2 COR,S 2 CSR),以产生单-和二-取代的衍生物(M(η-C 5 H ^ 5)(否)I(SS)]和[M(η-C 5 H ^ 5)(NO)(SS)2 ]。这些化合物具有18个电子构型和“四足钢琴凳”几何形状,已使用31监测了分子内不易识别的二硫代配体的易加扰。P和1 H NMR光谱对[M(η-C 5 H ^ 5)(否)PS 2(OR)2 } 2 ]和[M(η-C 5 H ^ 5)(NO)(S 2来)2 ],以及为后者获得的激活参数。配合物[M(η-C 5 H ^ 5)(NO)(S 2 CNR 2)S 2 P(OR)2 }],它含有二齿二硫代氨基甲酸配体和单齿dithiophosphato基,立体化学是刚性的。为了使PS