Dynamics of the OH( = 1,2,4) + O3 atmospheric reaction

Abstract

We report a theoretical dynamics study of the title five-atom atmospheric reaction using the quasiclassical trajectory method and a realistic double many-body expansion potential energy surface recently reported for HO₄(²A). A comparison with available results on the OH() quenching based on nonreactive collisions is also presented. The results indicate that vibrational excitation strongly enhances reactivity, with removal of vibrationally excited OH occurring predominantly through chemical reaction.