Impulse model of the atom-molecule reaction

A simple dynamical model has been reported in this paper. It has been assumed that the velocity of atom C is alike before and after reaction, and the repulsive energy releases impulsively when B-C bond ruptures. The vibrational and rotational energies of the product AB can be described as a function of the impact parameter b and the relative translational energy E of the reagents. The vibrational and rotational distributions of the product AB can be computed in the (b^*, E^*) phase space according to this model. It has been examined that the maximum impact parameter b_max, the mass factor cos²β, the repulsive energy R, and the average relative translational energy E_T influence on the vibrational distribution of the product AB. This model has explained successfully the reactions of Ba and N₂O, alkaline atoms and methyl halide. It has been showed that this model is the same as CPR model when the mass factor cos²β equals to zero.