Dynamics of H(D)+O-3 reactions on a double many-body expansion potential-energy surface for ground state HO3

We present a detailed dynamics and kinetics study of the title reactions over the range of translational energies, 1.448 less than or equal to E-t/kJ mol(-1) less than or equal to 72.363, which is sufficient to give thermal rate coefficients for the temperatures covered by the available experimental measurements. All calculations employed the quasi-classical trajectory method and a previously reported double many-body expansion potential-energy surface for ground state HO3. The agreement with the experimental thermal rate coefficients is good, although it is only moderate for the vibrational energy distribution in the product HO molecules.