HF--HF differential scattering cross sections

Journal Article · Sat Sep 15 04:00:00 EDT 1990 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.458784· OSTI ID:6367175

Vohralik, P F; Watts, R O ^[1]; Alexander, M H ^[2]

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1. Department of Chemistry BG-10, University of Washington, Seattle, WA (USA)
2. Fakultaet fuer Chemie, Universitaet Bielefeld, D-4800 Bielefeld (Federal Republic of Germany)

Close-coupled scattering calculations have been carried out for collisions between HF molecules in their ground vibrational state at a total energy of 1480 cm{sup {minus}1}. State-to-state integral and differential cross sections were determined for transitions {ital j}{sub 1}{ital j}{sub 2}{r arrow}{ital j}{sup {prime}}{sub 1}{ital j}{sup {prime}}{sub 2}, which refer to collisions HF({ital j}{sub 1})+HF({ital j}{sub 2})+{Delta}{ital E}{r arrow}HF({ital j}{sup {prime}}{sub 1}) +HF({ital j}{sup {prime}}{sub 2}), where {Delta}{ital E} is the energy gap. Particularly large cross sections are obtained for the {ital j} {ital j}+1{r arrow}{ital j}+1 {ital j} transitions, which are both resonant and coupled to first order by the dipole--dipole interaction. The relationship between the calculated cross sections and the results of molecular beam scattering experiments is discussed. Total differential scattering measurements for HF--HF collisions are also reported and compared with the calculated results.

• OSTI ID: 6367175
• Journal Information: Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 93:6; ISSN JCPSA; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY LEVELS
EXCITED STATES
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MOLECULAR BEAMS
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
POLAR COMPOUNDS
ROTATIONAL STATES