Dipalladium Complexes with Bridging Monoalkyl or Monophenyl Silyl Ligands in the Solid State and in Solution

作者：Tanabe Makoto; Takahashi Atsushi; Yamada Tetsuyuki; Osakada Kohtaro^*

来源：Organometallics, 2013, 32(6): 1815-1820.

DOI：10.1021/om3012486

HexSiH(3), PhSiH3, and PhSiClH2 reacted with [Pd(PCy3)(2)] to yield dipalladium complexes with bridging silyl ligands: [{Pd(PCy3)}(2)(mu-HSiXR)(2)] (1, R = Hex, X = H; 2, R = Ph, X = H; 3, R = Ph, X = Cl). The X-ray crystallographic results displayed a typical bis(silyl)-bridged dinuclear structure with an anti conformation of the substituents on the Si atom in the solid state. Temperature-dependent NMR spectroscopic analyses of 1 and 2 revealed a dynamic syn-anti isomerization of the complex via exchange of the bridging and nonbridging Si-H hydrogens in solution. Complex 3 with bridging chloro(phenyl)silyl ligands did not show such a dynamic behavior.

• 出版日期2013-3-25