Observation of rapid E-to-V energy transfer in the 2. 3. mu. m laser-induced fluorescence of PuF/sub 6/ containing HF

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · J. Chem. Phys.; (United States)

OSTI ID:5657579

Rice, W W; Barefield, II, J E; Pack, R T

Following excitation of PuF/sub 6/ at 800 nm, laser-induced fluorescence (LIF) of PuF/sub 6/ is observed near 2.3 ..mu..m; HF v = 1 to 0 emission, arising from near resonant electronic-to-vibrational (E..-->..V) energy transfer, is also observed with the same temporal decay as the PuF/sub 6/ fluorescence. From the rise and decay times of the PuF/sub 6/ and HF fluorescence and their relative intensities, all the rate constants involved in this relaxation are determined. The E..-->..V rate constant is found to be (7.5 +- 2.5) x 10/sup 3/ Torr/sup -1/ s/sup -1/, and that for the relaxation of HF (v = 1) by PuF/sub 6/ is found to be (5.7 +- 0.7) x 10/sup 3/ Torr/sup -1/ s/sup -1/.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 5657579
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 85:1; 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
ACTINIDE COMPOUNDS
COLLISIONS
DE-EXCITATION
ELECTRONIC STRUCTURE
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
LUMINESCENCE
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
PLUTONIUM COMPOUNDS
PLUTONIUM FLUORIDES
RADIATIONLESS DECAY
RELAXATION
TRANSURANIUM COMPOUNDS
VIBRATIONAL STATES