Dynamic processes in silyl palladium complexes: evidence for intermediate Si-H and Si-Si sigma-complexes.
The silyl palladium complexes (dcpe)PdH(SiHtBu2) and (dcpe)Pd(SiHMe2)2 display NMR spectra that vary with temperature. The dynamic NMR behavior is consistent with long-lived sigma-complexes as intermediates. In the case of (dcpe)PdH(SiHtBu2), the intermediate is believed to be a symmetric complex with doubly bridged hydrogen atoms between the silicon and palladium. Dynamic interchange of the two silicon atoms in (dcpe)Pd(SiHMe2)2 is consistent with an intermediate Si-Si sigma-complex.
Boyle
Robert C
RC
Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA.
Pool
Douglas
D
Jacobsen
Heiko
H
Fink
Mark J
MJ