Multiproperty empirical anisotropic intermolecular potentials for ArSF/sub 6/ and KrSF/sub 6/

Journal Article · Wed Dec 01 00:00:00 EST 1982 · J. Chem. Phys.; (United States)

OSTI ID:6705177

Pack, R T; Valentini, J J; Cross, J B

Crossed molecular beam measurements of the total differential cross sections (DCS) for the scattering of Ar and Kr by SF/sub 6/ are reported. Using anisotropic multiparameter M3SV potential forms and the infinite order sudden approximation (IOSA) to do the scattering dynamics, we determine anisotropic intermolecular potentials by simultaneously fitting the DCS, viscosities, and virial coefficients. Substantial anisotropy is required to fit the observed damping of the rainbow oscillations in the DCS. The results are the first good intermolecular potentials for the ArSF/sub 6/ and KrSF/sub 6/ interactions.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6705177
• Journal Information: J. Chem. Phys.; (United States), Vol. 77:11
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM-MOLECULE COLLISIONS
KRYPTON
SULFUR FLUORIDES
ANISOTROPY
DIFFERENTIAL CROSS SECTIONS
INTERMOLECULAR FORCES
MOLECULAR BEAMS
SUDDEN APPROXIMATION
ATOM COLLISIONS
BEAMS
COLLISIONS
CROSS SECTIONS
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
MOLECULE COLLISIONS
NONMETALS
RARE GASES
SULFUR COMPOUNDS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena