Vibrational relaxation HF (v=3,4) by H2, D2, and CO2
- 15 February 1979
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 70 (4), 1769-1773
- https://doi.org/10.1063/1.437649
Abstract
The vibrational relaxation of HF (v=3, 4) in H2, D2, and CO2 has been studied by pumping HF directly from v=0 to v=4. The relaxation rates at 293±2 K of HF (v=3) and HF (v=4) were found to be k3T(H2) = (3.1±0.6) ×10−13 and k4T(H2) = (4.7±1.2) ×10−13 in H2, k3T(D2) = (1.34±0.26) ×10−12 and k4T(D2) = (3.34±0.60) ×10−12 in D2, and k3T(CO2) = (1.01±0.16) ×10−11 and k4T(CO2) = (2.25±0.43) ×−10 in CO2 respectively, all in cm3 molecule−1 s−1. The observed relaxation rate for HF(v=4) in CO2 did not depend on the rotational state which was initially excited for J=0–5.Keywords
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