Orientational ordering and site structure of SiF/sub 4/ trapped in rare gas solids

Journal Article · Sat Dec 15 04:00:00 EST 1984 · J. Chem. Phys.; (United States)

OSTI ID:6213111

Jones, L H; Swanson, B I; Ekberg, S A

The infrared spectrum of the ..nu../sub 3/ mode of SiF/sub 4/ shows only one site with marked site-symmetry splitting accompanied by pronounced (>95%) orientational ordering. The results indicate a site symmetry of C/sub 3v/ with the SiF/sub 4/ molecule occupying a four-atom substitutional site with a cubic-close-packed environment. In krypton and xenon matrices, however, SiF/sub 4/ occupies a three-atom substitutional site. The fact that SiF/sub 4/ shows only one dominant site when present in argon matrices of UF/sub 6/ indicates that one of the two UF/sub 6/ sites has a local hexagonal close packed environment induced by short range stacking faults.

• Research Organization: Los Alamos National Laboratory, University of California, Los Alamos, New Mexico 87545
• OSTI ID: 6213111
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 81:12; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
INFRARED SPECTRA
KRYPTON
MATRIX ISOLATION
NONMETALS
ORIENTATION
RARE GASES
SILICON COMPOUNDS
SILICON FLUORIDES
SPECTRA
ULTRALOW TEMPERATURE
XENON