The chemistry of platinum hydrides. Part XXX. The chemical and structural effects of steric overcrowding in the compounds cis- and trans-H[R3Sn]Pt(PCy3)2, R = Ph, Cl
The chemistry of platinum hydrides. Part XXX. The chemical and structural effects of steric overcrowding in the compounds cis- and trans-H[R3Sn]Pt(PCy3)2, R = Ph, Cl
复制标题
氢化铂的化学性质。
DOI：
--
复制
发表时间：
1988
期刊：
影响因子：
--
通讯作者：
B. L. Ruhl
中科院分区：
文献类型：
--
作者：
H. C. Clark;G. Ferguson;M. Hampden;H. Ruegger;B. L. Ruhl
Pt0(PCy3)2与三苯基氢化锡反应生成顺式h (Ph3Sn)Pt(PCy3)2；光、热和游离膦的存在加速了反式异构体的异构化。两种异构体都用核磁共振谱进行了表征；特别是，溶液中的31P {1H}谱与固态CP/MAS 31P核磁共振谱和晶体结构相关。测定了反式h (X3Sn)Pt(PCy3) 2x = Ph或Cl的晶体结构，并确定和讨论了空间过度拥挤产生畸变的性质。
The reaction of Pt0(PCy3)2 with triphenyltin hydride yields cis-H(Ph3Sn)Pt(PCy3)2 as the initial product; isomerization to the trans isomer is accelerated by light, heat, and the presence of free phosphine. Both isomers have been characterized by multinuclear nmr spectroscopy; in particular, the 31P {1H} spectra in solution are correlated with the solid state CP/MAS 31P nmr spectra and the crystal structure. The crystal structures of trans-H(X3Sn)Pt(PCy3)2 X = Ph or Cl have been determined and the nature of the distortions produced by steric overcrowding is identified and discussed.