O-O2 state-to-state vibrational relaxation and dissociation rates based on quasiclassical calculations

A complete set of V-T (vibration-translation) relaxation rates and of dissociation coefficients for the system O-O2 have been obtained by using quasiclassical trajectories on the Varandas and Pais potential energy surface. The results, averaged on a Boltzmann rotational distribution, cover the whole range of the vibrational ladder and are reproduced in closed form ready to be implemented in state-to-state kinetic models. The accuracy of the results has been tested by comparing them with available experimental and theoretical values (ASI-CAST project is acknowledged).