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Rate constants of the reactions of OH radicals with cyclopropane and cyclobutane
Author(s) -
DóBé S.,
Turányi T.,
Iogansen A. A.,
Bérces T.
Publication year - 1992
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550240207
Subject(s) - cyclobutane , cyclopropane , chemistry , flash photolysis , radical , reaction rate constant , cycloalkane , reactivity (psychology) , photochemistry , molecule , kinetic energy , kinetics , organic chemistry , catalysis , medicine , ring (chemistry) , physics , alternative medicine , pathology , quantum mechanics
Abstract The kinetics of the reactions of hydroxy radicals with cyclopropane and cyclobutane has been investigated in the temperature range of 298–492 K with laser flash photolysis/resonance fluorescence technique. The temperature dependence of the rate constants is given by k 1 = (1.17 ± 0.15) × 10 −16 T 3/2 exp[−(1037 ± 87) kcal mol −1 / RT ] cm 3 molecule −1 s 1 and k 2 = (5.06 ± 0.57) × 10 −16 T 3/2 exp[−(228 ± 78) kcal mol −1 / RT ] cm 3 molecule −1 s −1 for the reactions OH + cyclopropane → products (1) and OH + cyclobutane → products (2), respectively. Kinetic data available for OH + cycloalkane reactions were analyzed in terms of structure‐reactivity correlations involving kinetic and energetic parameters.