Kinetic studies of reactions of organosilylenes: what have they taught us?
Rate constants for bimolecular reactions, obtained through time-resolved kinetic studies both in the gas and liquid phases are reviewed. Data for reactions of MeSiH, PhSiH, ClSiH, SiCl(2), SiMe(2), MeSiPh, SiPh(2) and SiMes(2) are covered. Where possible, substituent effects relative to SiH(2) have been obtained. These demonstrate widely varying effects between different types of reaction, which aids mechanistic understanding. Reactivities are high for all silylenes, but substituents can reduce them by both electronic and steric effects. The gas and liquid phase data (mainly for SiMe(2)) are compared and appear to be reasonably consistent. This review, although detailed, is not comprehensive.
Becerra
Rosa
R
Instituto Quimica-Fisica Rocasolano, CSIC, C/Serrano 119, 28006, Madrid, Spain. r.becerra@iqfr.csic.es
Walsh
Robin
R