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The temperature dependence of the rate constant for the reaction F+DBr→DF+Br

✍ Scribed by Erella Schwartz; Avigdor Persky

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
530 KB
Volume
196
Category
Article
ISSN
0009-2614

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✦ Synopsis

The ratio of rate constants k F+DBr/kF+Hz has been determined by a discharge-flow-mass spectrometric technique and was found to exhibit a linear Arrhenius temperature dependence in the range 210-298 K. Based on the linear dependence reported for k F+H2, it is concluded that kF+DBr also exhibits a linear Arrhenius temperature dependence. The present results for kF+DBr are consistent with earlier results for kF+nBr and confirm our earlier conclusion that the mechanism of the reaction is probably a direct hydrogen atom abstraction. Results concerning the kinetic isotope effect kF+HBr/kF+DBr are also presented and discussed.

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