| Autor: |
Porter, E., Wenger, J., Treacy, J., Sidebottom, H., Mellouki, A., Teton, S., LeBras, G. |
| Zdroj: |
The Journal of Physical Chemistry - Part A; August 7, 1997, Vol. 101 Issue: 32 p5770-5775, 6p |
| Abstrakt: |
Rate constants for the reactions of OH radicals with a series of diethers and hydroxyethers have been determined at 298 ± 2 K. Rate measurements were made using a pulsed laser photolysis resonance fluorescence technique at total pressures of ~100 Torr and a conventional photolytic relative rate method at atmospheric pressure. The temperature dependencies of the rate constants for four diethers were also studied over the temperature range 230−372 K using pulsed laser photolysis resonance fluorescence. The rate data for reaction of OH with the diethers show significant deviations from simple structure−activity relationships. Evidence is presented that suggests that these deviations may be a consequence of stabilization of the reaction transition states by hydrogen bonding. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
