Porter, Edward,Wenger, John,Treacy, Jack,Sidebottom, Howard,Mellouki, Abdelwahid,Teton, Sophie,LeBras, Georges;

1997

Unknown

The Journal of Physical Chemistry A

Kinetic Studies on the Reactions of Hydroxyl Radicals with Diethers and Hydroxyethers

Validated

()

101

32

5770

5775

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 230372 K using pulsed laser photolysis resonance fluorescence. The rate data for reaction of OH with the diethers show significant deviations from simple structureactivity relationships. Evidence is presented that suggests that these deviations may be a consequence of stabilization of the reaction transition states by hydrogen bonding.

1089-5639

http://dx.doi.org/10.1021/jp971254i