from a similar reaction of sodium borohydride with [PtCl(PC)(CO)]. Complexes 2 have been characterized by their elemental analysis, infrared, 1H NMR and 31P NMR spectral data. The trans-configuration has been assigned to these complexes on the basis of a 12 line 31P NMR spectra which shows large phosphorus-phosphorus coupling constants(2J(PP′) = 371–400 Hz). The trans-effect of the alkyl phosphines has
摘要几种含有两个非等价
膦配体的氢化
铂(II)配合物[PtH(PC)(PR3)](2)[其中(P(C)= But2PCMe2tCH2和PR3 = PEt3,PPhi3,PBut2ME,PBu3 ,P(C [6H4-Me)3,P(OPh)3]是通过
硼氢化钠与相应的
氯铂(II)配合物[PtCl(PC)(PR3)]反应制得的(1) 。从
硼氢化钠与[PtCl(PC)(CO)]的类似反应中分离出三核
铂簇[Pt(CO)(PBut3)] 3。配合物2的特征在于其元素分析,红外,1 H NMR和31 P NMR光谱数据。根据12条线的31P NMR光谱将反式构型分配给这些络合物,该光谱显示出大的
磷-
磷偶合常数(2J(PP')= 371–400 Hz)。