Multiproperty empirical anisotropic intermolecular potentials. II. HeSF/sub 6/ and NeSF/sub 6/
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), Journal Name: J. Chem. Phys.; (United States) Vol. 80:10; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANISOTROPY
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
BEAMS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
HELIUM
INTERMOLECULAR FORCES
MOLECULAR BEAMS
MOLECULE COLLISIONS
NEON
NONMETALS
POTENTIALS
RARE GASES
SULFUR COMPOUNDS
SULFUR FLUORIDES