Temperature dependence of oxygen atom recombination in nitrogen after ozone photolysis

Oxygen atom decays in nitrogen were measured by laser induced fluorescence following complete photodissociation of ozone at 248 nm. Rate coefficients determined for O + O + N2 are 2.5, 4.6, and 19.5 × 10−33 cm6/molecule2/s at 316, 262, and 171 K, with estimated 30% uncertainty. Results are in excellent agreement with the Baulch et al. [D.L. Baulch, D.D. Drysdale, J. Duxbury, S.J. Grant, Evaluated Kinetic Data for High Temperature Reactions, vol. 3, Butterworths, London, 1976, p. 33–64] recommended Arrhenius expression.