title: Kinetic study of the ClOO + NO reaction using cavity ring-down spectroscopy.
abstract: Cavity ring-down spectroscopy was used to study the reaction of ClOO with NO in 50-150 Torr total pressure of O2/N2 diluent at 205-243 K. A value of k(ClOO+NO) = (4.5 +/- 0.9) x 10(-11) cm3 molecule(-1) s(-1) at 213 K was determined (quoted uncertainties are two standard deviations). The yield of NO(2) in the ClOO + NO reaction was 0.18 +/- 0.02 at 213 K and 0.15 +/- 0.02 at 223 K. An upper limit of k(ClOO+Cl2) < 3.5 x 10(-14) cm3 molecule(-1) s(-1) was established at 213 K. Results are discussed with respect to the atmospheric chemistry of ClOO and other peroxy radicals.
authors.affiliation: Department of Molecular Engineering and Graduate School of Global Environmental Studies, Kyoto University, Kyoto 615-8510, Japan.
authors.forename: Shinichi
authors.initials: S
authors.lastname: Enami
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Hoshino
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ito
authors.forename: Satoshi
authors.initials: S
authors.lastname: Hashimoto
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kawasaki
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Wallington