Vibrational relaxation of DF(v = 1 and 3) in H/sub 2/, D/sub 2/, N/sub 2/, and HF at 200 K
Journal Article
·
· J. Chem. Phys.; (United States)
OSTI ID:6562362
The laser-induced fluorescence technique was used to measure the rate coefficients for the deactivation of DF(v = 1) and DF(v = 3) in H/sub 2/, D/sub 2/, N/sub 2/, and HF at 200 +- 5 K. The rate coefficients for deactivation by H/sub 2/, N/sub 2/, and HF were found to scale with v as v/sup 1.9plus-or-minus0.1/, essentially the same as the scaling at 295 K. The relaxation rates for DF(v = 1) were compared with data obtained at higher temperatures. At 200 K, the exchange probability of HF(1) + H/sub 2/(0) was the same as that of DF(1) + D/sub 2/(0) (within 10%) when the endothermicities were considered.
- Research Organization:
- Aerospace Corp., Los Angeles, CA
- OSTI ID:
- 6562362
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 74:5; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CHEMICAL LASERS
COLLISIONS
DEUTERIUM
ELEMENTS
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
FLUORESCENCE
HYDROFLUORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INORGANIC ACIDS
ISOTOPES
LASERS
LIGHT NUCLEI
LUMINESCENCE
MEDIUM TEMPERATURE
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
RELAXATION
STABLE ISOTOPES
VIBRATIONAL STATES
420300 -- Engineering-- Lasers-- (-1989)
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CHEMICAL LASERS
COLLISIONS
DEUTERIUM
ELEMENTS
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
FLUORESCENCE
HYDROFLUORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INORGANIC ACIDS
ISOTOPES
LASERS
LIGHT NUCLEI
LUMINESCENCE
MEDIUM TEMPERATURE
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
RELAXATION
STABLE ISOTOPES
VIBRATIONAL STATES