Transfer of state multipoles in open shell molecule--open shell molecule scattering

Journal Article · Tue Mar 15 04:00:00 EST 1983 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.445163· OSTI ID:5636667

Whitaker, B J; McCaffery, A J

General expressions are derived for the transfer of state multipoles in open shell polyatomic--open shell polyatomic rotationally inelastic collisions. These are then used to write expressions for the circular polarizations of spin and rotationally resolved spectral emission lines. Using the distorted wave Born approximation (DWBA), circular polarization ratios are calculated for the specific case of inelastic H+NH/sub 2/ collisions. The potential is decomposed into a spin-dependent term and an exchange term using tensor methods to facilitate the calculation. Alternatively, the scattering may be considered to take place on singlet or triplet surfaces. An interesting feature of the results is that reorientation appears to be faster on the triplet surface than on the singlet.

• Research Organization: School of Chemistry and Molecular Sciences, University of Sussex, Brighton, East Sussex, United Kingdom
• OSTI ID: 5636667
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 78:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
EMISSION SPECTRA
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
INELASTIC SCATTERING
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
POLARIZATION
ROTATIONAL STATES
SCATTERING
SPECTRA