C3H5, C2H4OH, C3H6CN, 10a-d). Although complexes 11a-d have the same configuration as 9a,b, the SR group is oriented away from Pd in the former and near Pd in the latter. In these complexes, the diphenyl(dithioalkoxycarbonyl)phosphine ligand is bound to the two metals through the C=S pi-bonding and to phosphorus through the sigma-bonding. All of the complexes are identified by spectroscopic methods
                                    用[Pd(PPh3)4](1)处理复合物[W(CO)5 [PPh2(CS2Me)]](2)提供双核复合物,例如抗-[(Ph3P)2Pd [mu-eta 1,eta] 2-(CS2Me)PPh2] W(CO)5](3),syn-[(Ph3P)2Pd [mu-eta 1,eta 2-(CS2Me)PPh2] W(CO)5](4)和反式-[W(CO)4(PPh3)2](5)。在3和4中,相对于二苯基(二
硫代甲氧基羰基)
膦配体PPh2(CS2Me)的P-CS2键,W和Pd原子处于反式和顺式构型。通过将PPh3
配体从Pd转移到W,消除[W(CO)5(PPh3)](7),在室温下,配合物3在
CHCl3中进行了广泛的重排,而PPh2CS2Me
配体从W转移到Pd,得到[[( Ph3P)Pd [mu-eta 1,eta 2-(CS2Me)PPh2]] 2](6)。在复合物6中,[Pd(PPh3)]片段通过两