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Deactivation of higher vibrational levels of HF by F atoms

Technical Report ·
OSTI ID:6163374

The vibrational relaxation times of HF(v = 3) and HF(v = 1) in the presence of F atoms have been measured in a slow-flow fluorescence cell at room temperature. The HF is pumped to vibrational levels v = 1, 2, and 3 by a pulsed HF laser. It was found that F atoms deactivate HF(v = 3) faster than they do HF(v = 1) by a factor of 20.8 +- 2.0. This dependence of the deactivation rate coefficient on v agrees with that determined for the exothermic V-V or V-R,T deactivation of HF(v = 1 to 3) by N/sub 2/, O/sub 2/, D/sub 2/ and HCl. 15 references, 2 figures, 1 table.

Research Organization:
Aerospace Corp., El Segundo, CA (USA). Aerophysics Lab.
OSTI ID:
6163374
Report Number(s):
AD-A-140-853; ON: TI85900224
Country of Publication:
United States
Language:
English