Journal of Physical Chemistry p. 8961 - 8964 (1992)
Update date:2022-08-11
Topics:
Jiang, Zhen
Taylor, Philip H.
Dellinger, Barry
Absolute rate coefficients are determined for the gas-phase reaction of OH radicals with 1,1,1-trichloroethane over an extended temperature range.Employing a laser photolysis/laser-induced fluorescence technique, experiments were conducted with a flow system at a total pressure of 740 +/- 10 Torr using He as diluent and carrier gas.The rate coefficients, obtained over the temperature range 298-761 K, exhibited pronounced non-Arrhenius behavior and were best described by the modified Arrhenius equation k(T)=(3.95 +/- 0.78) x 10-13(T/300)2.08exp<(-1068 +/- 108)/T> cm3 molecule-1 s-1.Comparison of the data with numerous lower temperature measurements is presented.The temperature dependence of the data is compared with empirical and transition-state model calculations.The reactivity of this compound with OH compared to other chlorinated ethanes at both lower and higher reaction temperatures is presented and discussed.
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