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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 13, Number 1
BKCSDE 13(1)
January 20, 1992 

 
Title
Temperature Dependence of the Vibration-Vibration Energy Transfer for HF(v = n) + H2(v = 0) and DF(v = n) + D2(v = 0)
Author
Chang Soon Lee*, Yoo Hang Kim
Keywords
Abstract
Vibration-to-vibration energy transfer probabilities for HF(v = n) + H2(v = 0) → HF(v = n-1) + H2(v = 1) and DF(v = n) + D2(v = 0) → DF(v = n-1) + D2(v = 1) including both the vibration-to-vibration and translation (V-V, T) and vibration-to-vibration and rotation (V-V, R) energy transfer paths have been calculated semiclassically using a simplified collision model and Morse-type intermolecular interaction potential. The calculated results are in reasonably good agreement with those obtained by experimental studies. They also show that the transition processes for HF(v = 1-3) + H2(v = 0) → HF(v = 0-2) + H2(v = 1) and DF(v = 1, 4) + D2(v = 0, 3) + D2(v = 1) are strongly dependent on the V-V, T path at low temperature but occur predominantly via the V-V, R path with rising temperature. The vibration-to-vibration energy transfer for HF(v = 4) + H2(v = 0) → HF(v = 3) + H2(v = 1) and DF(v = 2-3) + D2(v = 0) → DF(v = 1-2) + D2(v = 1) occur predominantly via V-V, R path and V-V, T path through whole temperatures, respectively.
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11 - 17
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