Orientational ordering and site structure for CCl/sub 4/ in a krypton matrix

Journal Article · Sun Apr 01 04:00:00 EST 1984 · J. Chem. Phys.; (United States)

OSTI ID:5122716

Jones, L H; Swanson, B I

Infrared studies of the ..nu../sub 3/ and ..nu../sub 1/+..nu../sub 4/ modes of CCl/sub 4/ trapped in krypton matrices show that the CCl/sub 4/ molecules adopt two sites, one of which preserves the triple degeneracy while the other shows site symmetry splitting and a high degree of orientational ordering. At deposition temperatures above 35 K the orientational ordering of the low symmetry site is diminished as is the relative concentration of this site compared to the other. The results suggest that both cubic-close-packed and hexagonal-close-packed environments exist in these matrices. Significant differences in the ..nu../sub 3/ vs ..nu../sub 1/+..nu../sub 4/ line widths have been observed and attributed to rapid V--V energy transfer from the higher to the lower of these Fermi coupled modes.

• Research Organization: Los Alamos National Laboratory, University of California, Los Alamos, New Mexico 87545
• OSTI ID: 5122716
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 80:7; 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
CARBON TETRACHLORIDE
CHLORINATED ALIPHATIC HYDROCARBONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELEMENTS
ENERGY TRANSFER
FLUIDS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
INFRARED SPECTRA
KRYPTON
LINE WIDTHS
MATRIX ISOLATION
NONMETALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORIENTATION
RARE GASES
SPECTRA
SYMMETRY