Vibrational energy exchange between H/sub 2/(v=1) and D/sub 2/, N/sub 2/, HCl, and CO/sub 2/. Interim report

Technical Report · Fri Oct 01 04:00:00 EDT 1976

OSTI ID:7309306

Bott, J F

The vibrational relaxation of H/sub 2/(v = 1) by D/sub 2/, N/sub 2/ HCl, and CO/sub 2/ was studied at 295 K by a laser-induced fluorescence technique. HF added in small quantities to the gas mixtures and vibrationally excited by a pulsed HF TEA laser produced H/sub 2/(v = 1) by V-V transfer; HF also served as the tracer for H2(v = 1). The results were interpreted to be primarily V-V rates. The data for D/sub 2/ and N/sub 2/ were correlated with the V-V exchange probabilities for other diatom--diatom collisions by the parameter ..mu.. (1/2) delta E, where ..mu.. is the reduced mass of the collision partners and delta E, the energy mismatch. This parameter also correlates V-V exchange probabilities for CO/sub 2/-diatom collisions. A separate correlation of V-V exchange probabilities for hydrogen halide-homonuclear diatom collisions was obtained by plotting the probabilities versus delta E/h nu. (GRA)

• Research Organization: Aerospace Corp., El Segundo, CA (USA). Aerophysics Lab.
• OSTI ID: 7309306
• Report Number(s): AD-A-031213
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
CRYOGENIC FLUIDS
DEUTERIUM
ELEMENTS
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
FLUIDS
HYDROCHLORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INORGANIC ACIDS
ISOTOPES
LIGHT NUCLEI
MEDIUM TEMPERATURE
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OXIDES
OXYGEN COMPOUNDS
RELAXATION
STABLE ISOTOPES
VIBRATIONAL STATES