Calculation on the Dynamics and Vibrational State Distribution of Product CN for the Reaction Hydrocyanic Acid and Chlorine

In this paper, based on ab initio methods, the intrinsic reaction coordinate (IRC)of the reaction HCN+Cl→HCl+CN is traced at the basis level of UHF/6-311G. Along the IRC, the dynamical properties of the reaction are investigated. The theoretical rate constants of the conventional transition-state theory and variational transition-state theory are calculated, and they are for experimental reference. The product vibrational state distribution of CN for the reaction HCN(004,302)+Cl→HCl+CN is also calculated by the subroutine which is compiled using vibration transtion probability formula based on SCP-IOS theory. The calculated results are in od agreement with experiments.