Rate constants for hydrogen abstraction from alkoxides by a perfluoroalkyl radical. An oxyanion accelerated process.
- Additional Document Info
- View All
A combination of laser flash photolysis and competitive kinetic methods has been used to measure the absolute bimolecular rate constants for hydrogen atom abstraction in water from a series of fluorinated alkoxides and aldehyde hydrates by the perfluoroalkyl radical, *CF2CF2OCF2CF2SO3- Na+. The bimolecular rate constants observed for the beta-fluorinated alkoxides were in the 10(5) M(-1) s(-1) range, such rates representing enhancements (relative to the respective alcohols) of between 100 and almost 1000-fold, depending on the reactivity of the alkoxide. Likewise, the monobasic sodium salts of chloral and fluoral hydrate exhibit similar rate enhancements, relative to their respective hydrates.
author list (cited authors)
Cradlebaugh, J. A., Zhang, L. i., Shelton, G. R., Litwinienko, G., Smart, B. E., Ingold, K. U., & Dolbier, W. R
complete list of authors
Cradlebaugh, Joseph A||Zhang, Li||Shelton, G Robert||Litwinienko, Grzegorz||Smart, Bruce E||Ingold, Keith U||Dolbier, William R