Knowledge Bank

The dynamics of dissociation following a direct photon absorption to a repulsive state are studied using the theory of scattering by two potentials. Computational results for ICN are based on the quantum mechanical quasidiatomic model. Here it is assumed that the initial state, following the direct photon absorption corresponds to an I atom interacting (repulsively) with a CN molecule, with the CN being in a specified vibrational state. Due to the repulsive I-CN potential, different vibrational states of CN may be excited during the receding relative motion of the dissociation fragments, and some of the initially available kinetic energy may be converted to vibrational excitation of CN. Computational results for a (linear) ICN suggest that the fraction of energy transfered to the CN is small. The detailed results are in good agreement with the classical trajectory calulations of Wilson et. $al.1$.