Multiproperty empirical anisotropic intermolecular potentials. II. HeSF/sub 6/ and NeSF/sub 6/

Journal Article · Tue May 15 00:00:00 EDT 1984 · J. Chem. Phys.; (United States)

OSTI ID:7187250

Pack, R T; Piper, E; Pfeffer, G A; Toennies, J P

Crossed molecular beam measurements of the total differential cross sections (DCS) for the scattering of He and Ne by SF/sub 6/ are reported. Using anisotropic MSV potential forms and the IOS approximation to do the scattering dynamics, we determine anisotropic intermolecular potentials by simultaneously fitting the DCS, viscosities, virial, and diffusion coefficients. Damping of the diffraction oscillations in the DCS determines the anisotropy of the minimum position r/sub m/ of the HeSF/sub 6/ interaction; damping of the rainbow determines the anisotropy of the well depth epsilon of the NeSF/sub 6/ interaction. Consistency between the systems verifies the accuracy of the resulting HeSF/sub 6/ and NeSF/sub 6/ potentials.

• Research Organization: Max-Planck-Institut fuer Stroemungsforschung, D 3400 Goettingen, Federal Republic of Germany
• OSTI ID: 7187250
• Journal Information: J. Chem. Phys.; (United States), Vol. 80:10
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM-MOLECULE COLLISIONS
INTERMOLECULAR FORCES
HELIUM
NEON
SULFUR FLUORIDES
ANISOTROPY
DIFFERENTIAL CROSS SECTIONS
MOLECULAR BEAMS
POTENTIALS
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