Kinetics and product studies of the reaction of Br, Cl, and NO with ClOOCl using discharge-flow mass spectrometry
Abstract
The kinetics of the reactions Cl + ClOOCl → products (5), Br + ClOOCl → products (7), and NO + ClOOCl → products (8) have been studied as a function of temperature at 1 Torr total pressure using a discharge-flow mass spectrometric technique. The measured rate coefficients, expressed in Arrhenius form, are k5
=
(7.60 ± 0.56)
× 10−11exp((65.4 ± 17.9)/T) cm3 s−1 for 217 K < T < 298 K, and k7
=
(5.88 ± 0.50)
× 10−12 exp(−173 ± 20/T) cm3 s−1 for 223 K < T< 298 K. The observed temperature dependencies of these rate coefficients indicate a common direct