Laser double resonance measurements of vibrational energy transfer rates and mechanisms in HF(v = 2)
- 15 October 1982
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 77 (8) , 3974-3982
- https://doi.org/10.1063/1.444360
Abstract
Overtone vibration‐laser double resonance studies of HF(v = 2) yield self‐relaxation rate constants for v = 2 and v = 1 of k2 = (19.8±1.0) ×10−12 cm3 molecule−1 s−1 and k1 = (1.46±0.1) ×10−12 cm3 molecule−1s−1, respectively. These experiments indicate that the fraction of HF(v = 2) molecules relaxing via vibration‐to‐vibration energy transfer is only 0.35±0.10, in sharp contrast to trajectory and scaling calculations which predict the dominance of this pathway over vibration‐to‐translation, rotation energy transfer.Keywords
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