QUANTUM SCATTERING STUDIES ON THE STATE-TO-STATE PROBABILITIES AND SELECTED-STATE CROSS-SECTIONS FOR ION-PAIR FORMATION PROCESS - K-2-]K++I-2(-)(I)

The state-to-state probabilities and selected-state cross sections of ion-pair formation process K + I-2 --> K+ + I-2(-) on Aten - Lanting - Los two - state potential energy surface have been calculated using M iller's S-matrix variational approach. The results show that this ioni zation reaction has low threshold energy, oscillatory probabilities an d enhanced-vibrational effect; ionization cros sections as a function of collision energy and the vibrational quantum number of molecule I-2 are in agreement with experimental observations as well, Ionization m echanism has been discussed.