Synthesis and<sup>31</sup>P n.m.r. spectroscopy of platinum and palladium complexes containing side-bonded diphenyldiphosphene. The X-ray crystal and molecular structure of [Pd(PhPpph){bis(diphenyl-phosphino)ethane}]
作者:Joseph Chatt、Petter B. Hitchcock、Alan Pidcock、Christopher P. Warrens、Keith R. Dixon
DOI:10.1039/c39820000932
日期:——
The structure of [Pd(PhPPPh)(dppe)], dppe = bis(diphenylphosphino)ethane, obtained by a new and potentially general synthesis, is essentially plannar with only a 3° twist between the PdP2 planes and a P–P bond distance of 2.121(4)Å; 31P n.m.r. data on the analogous platinumcomplexes show very small s-character in the Pt–P(diphosphene) bonds, suggesting that the structure is essentially a diphosphene
[Pd(PhP PPh)(dppe)]的结构,dppe =双(二苯基膦基)乙烷,是通过一种新的可能具有普遍意义的合成方法获得的,其结构基本上是平面的,在PdP 2平面和P–P之间只有3°的扭曲。键距为2.121(4)Å; 类似铂络合物的31 P nmr数据显示Pt-P(diphosphene)键中的s-字符非常小,这表明该结构本质上是与Pt o结合的二膦,而不是与Pt结合的二磷基(2-)配体的结构。二。