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Local modes and complex formation in H+OH collisions: Collinear reactions

Journal Article · · J. Chem. Phys.; (United States)
DOI:https://doi.org/10.1063/1.448576· OSTI ID:5771932
We compute quasiclassical trajectories on the Schinke--Lester potential energy surface to study complex formation in collinear H+OH collisions at relative translational energies between 0.5 and 1.0 eV. At all energies except those just above the entrance channel barrier, the great majority of collisions are direct. Vibrational phase relationships and energy resonances determine the probability of forming a complex and its lifetime. At 0.5 eV we found two trajectories that followed regular, periodic paths for 10--12 vibrations. At higher energies long-lived complexes are characterized by chaotic motion, a pattern of beats between local modes, and a tendency to share energy.
Research Organization:
Department of Chemistry, The University of Tulsa, Tulsa, Oklahoma 74104
OSTI ID:
5771932
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 82:12; ISSN JCPSA
Country of Publication:
United States
Language:
English