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Dynamical potential approach to dissociation of H--C bond in HCO highly excited vibration
Authors:Fang Chao and Wu Guo-Zhen
Institution:Molecular and Nano Sciences Laboratory, Department of Physics, Tsinghua University, Beijing 100084, China
Abstract:The highly excited vibrational levels of HCO in the electronic ground state, \tilde {X}1A',are employed to determine the coefficients of an algebraic Hamiltonian, by which the dynamical potential is derived and shown to be very useful for interpreting the intramolecular vibrational relaxation (IVR) which operates via the HCO bending motion. The IVR inhibits the dissociation of H atom and enhances the stochastic degree of dynamical character. This approach is from a global viewpoint on a series of levels classified by the polyad number which is a constant of motion in a certain dynamical domain. In this way, the seemingly complicated level structure shows very regular picture, dynamically.
Keywords:HCO dissociation  dynamical potential  stochastic dynamics
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