Reactions of N(2 2D) and N( 22P) with O2

Abstract

The rate constants for the reactions of N(2 2D)+ O2 and N(2 2P)+ O2 have been measured by employing a pulse radiolysis–resonance absorption technique at temperatures between 210 and 295 K. The rate constants were expressed by the following Arrhenius equations: kN(2D)+ O2= 9.4 × 10–12 exp(–210/T) and kN(2P)+ O2= 3.1 × 10–12 exp(–60/T) in units of cm3 s–1.The results for N(2D)+ O2 were compared with the results of quasiclassical trajectory calculations on the basis of modified LEPS potential-energy surfaces. It is suggested that the main exit channel for the N(2D)+ O2 reaction is the production of O(1D) under the present conditions.