Double continuum fragmentation in the vibrational predissociation X⋅⋅⋅BC(v)⋅⋅⋅Y→BC(v′<v)+X+Y of van der Waals complexes: A perturbative treatment
- 15 September 1990
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 93 (6), 4016-4023
- https://doi.org/10.1063/1.458786
Abstract
We present an approximate quantal model to study the double continuum problem arising in the complete fragmentation of X⋅⋅⋅BC(v)⋅⋅⋅Y van der Waals(vdW) complexes, where BC is a conventional diatomic molecule vibrationally excited and X and Y are rare gas atoms, through vibrational predissociation (VP). Assuming a near equilibrium geometry of the complex and using an adiabatic approximation for describing the oscillation in the angle formed by the BC⋅⋅⋅X and BC⋅⋅⋅Y weak bonds, the rates for complete fragmentation are expressed in the frame of Fermi’s ‘‘Golden Rule’’. Double continuum wave functions may be obtained by a perturbative treatment that allows one to take properly into account the symmetry of the problem in the particular and very frequent case X≡Y.Keywords
This publication has 32 references indexed in Scilit:
- Triply-differential cross sections for ionisation of hydrogen atoms by electrons and positronsJournal of Physics B: Atomic, Molecular and Optical Physics, 1989
- Three-Body Treatment of the Final State in the (,) Reaction on Medium-Mass NucleiPhysical Review Letters, 1989
- Triple-differential cross sections for the ionization of helium by fast electronsPhysical Review A, 1988
- Differential cross sections of direct single electron impact ionizationThe European Physical Journal D, 1986
- Free jet-laser excitation fluorescence spectroscopy of complexes between neon and bromineThe Journal of Physical Chemistry, 1984
- Unusual optical potential in prior-form breakup theoryPhysical Review C, 1984
- The photodissociation of van der Waals molecules: Complexes of iodine, argon, and heliumThe Journal of Chemical Physics, 1981
- Formal theory of equivalent potentials in solids: II. Scattering theory approach for muffin-tin potentialsProceedings of the Physical Society, 1967
- Formal theory of equivalent potentials in solids: stationary-state approach and the orthogonalized plane wave pseudopotentialsProceedings of the Physical Society, 1967
- Quasiparticles and the Born SeriesPhysical Review B, 1963