Vibrational relaxation of DF(v=1 and 3) in H2, D2, N2, and HF at 200 K
Abstract
The laser-induced fluorescence technique was used to measure the rate coefficients for the deactivation of DF(v=1) and DF(v=3) in H2, D2, N2, and HF at 200±5 K. The rate coefficients for deactivation by H2, N2, and HF were found to scale with v as v1.9±0.1, 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)+H2(0) was the same as that of DF(1)+D2(0) (within 10%) when the endothermicities were considered.
- Publication:
-
Journal of Chemical Physics
- Pub Date:
- March 1981
- DOI:
- 10.1063/1.441454
- Bibcode:
- 1981JChPh..74.2827B
- Keywords:
-
- Df Lasers;
- Hf Lasers;
- Hydrogen Isotopes;
- Molecular Relaxation;
- Nitrogen Lasers;
- Vibrational Spectra;
- Chemical Lasers;
- Fluorescence;
- Optical Pumping;
- Reaction Kinetics;
- Room Temperature;
- Atomic and Molecular Physics