A kinetic study of the silyl substitution in tantalum amide silyl complex (Me(2)N)(3)Ta[Si(SiMe(3))(3)](2).
Kinetic studies have been performed for the substitution of the first silyl ligand in (Me(2)N)(3)Ta[Si(SiMe(3))(3)](2) (1) by Li(THF)(3)SiButPh(2) at 233 K (THF = tetrahydrofuran). In the presence of excess Li(THF)(3)SiButPh(2), these studies reveal that the reaction likely follows a dissociative pathway. THF, a polar solvent, is found to promote the substitution, and the order of the reaction with respect to THF is 1.7(0.3).
Qiu
He
H
Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, USA.
Chen
Shujian
S
Xue
Zi-Ling
ZL