Dynamics of bimolecular reactions of vibrationally highly excited molecules: Quasiclassical trajectory studies

Excitation functions from quasiclassical trajectory calculations on the H+H2O->OH+H2, H+HF->F+H2, and H+H'F->H'+HF reactions indicate a different behavior at low and high vibrational excitation of the breaking bond. Results indicate that the excitation functions for the reaction of an atom with a vibrational excited reactant undergoes a qualitative change as the vibrational excitation increases, independently whether the reaction is exothermic or endothermic.