作者:Danny Chan、Simon B. Duckett、Sarah L. Heath、Iman G. Khazal、Robin N. Perutz、Sylviane Sabo-Etienne、Philippa L. Timmins
DOI:10.1021/om049549n
日期:2004.11.1
thermodynamic stability of some of the platinum silyl complexes, of which the most stable was cis-Pt(PCy3)2(H)(SiPh2H). NMR spectroscopy demonstrates that the inequivalent phosphine ligands of the cis isomers undergo intramolecular mutual exchange on the NMR time scale. In competition with this process, the complexes undergo reversible reductive elimination of silane. Analysis of the NMR spectra yields the
一系列铂金属甲硅烷基氢化物配合物,顺式-Pt(PCy 3)2(H)(SiR 2 R')(SiR 2 R'= SiPh 2 H,SiEt 2 H,SiPh 3,SiEt 3,SiMe 2(OSiHMe 2),Si(OSiMe 3)2 Me,SiMe 2(CH 2 CH CH 2),SiMe 2 Et,SiMe 2 [OCH 2 C(Me)CH 2 ],Si(OMe)2(CH 2 CH CH 2),SiPh 2(OSiPh 2 H))是通过使Pt(PCy 3)2与适当的硅烷HSiR 2 R'反应而在溶液中制备的。复杂的顺式-Pt(PCy 3)2(H)(HSiPh 2)(1-顺式)的特征是通过X射线晶体学在-100°C下进行的。铂中心呈现出扭曲的方平面几何形状,角度为P(1)-Pt-P(2)= 113.55(3)°,P(1)-Pt-Si = 146.83(3)°和P(2 )-Pt-Si = 99