Infrared absorption by H{sub 2}-Ar collisional complexes and the anisotropy of the intermolecular interaction potential
Journal Article
·
· Physical Review. A
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309 (United States) and Institute of Atomic and Molecular Sciences, Academia Sinica, P. O. Box 23-166, Taipei, Taiwan (China)
H{sub 2}-Ar scattering processes in the presence of a weak photon field are considered. Calculations are based on an accurate ab initio interaction-induced electric dipole surface and an anisotropic intermolecular potential energy surface. The close-coupled scheme of integrating the Schroedinger equation is employed to calculate the rototranslational absorption spectrum of H{sub 2}-Ar pairs in the far-infrared region of the electromagnetic spectrum. The results are compared with previous work where the weak anisotropy of the intermolecular interaction potential was suppressed. Under the conditions considered, accounting for the anisotropy modifies the rototranslational absorption spectrum discernibly, but only at some frequency bands where the corrections are negative, typically below 10%.
- OSTI ID:
- 20974803
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interaction-induced dipole and absorption spectra of collisional He-Ar pairs
Ab Initio and Analytic Intermolecular Potentials for Ar–CH3OH
Quantum mechanical calculation of the collision-induced absorption spectra of N{sub 2}–N{sub 2} with anisotropic interactions
Journal Article
·
Sat Nov 30 23:00:00 EST 1996
· Physical Review A
·
OSTI ID:397561
Ab Initio and Analytic Intermolecular Potentials for Ar–CH3OH
Journal Article
·
Wed Sep 20 00:00:00 EDT 2006
· Physical Chemistry Chemical Physics. PCCP, 8(40):4678-4684
·
OSTI ID:921849
Quantum mechanical calculation of the collision-induced absorption spectra of N{sub 2}–N{sub 2} with anisotropic interactions
Journal Article
·
Fri Feb 27 23:00:00 EST 2015
· Journal of Chemical Physics
·
OSTI ID:22416179