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KMID : 1059519840280010026
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Journal of the Korean Chemical Society
1984 Volume.28 No. 1 p.26 ~ p.33
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Vibration-to-Vibration Energy Transfer Between HF and DF in the Mixture
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Lee Chang-Soon
Kim Yoo-Hang
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Abstract
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The rate constants for the following vibration-to-vibration energy exchange reactions have been calculated theoretically for the temperature range from 300 to 800K and for n = 2 to 5. HF(v=n) + DF(v=0) → HF(v=n-l) + DF(v=l) + ΔE(a) DF(v=n) + HF(v=0) → DF(v=n-l) + HF(v=l) + ΔE(b) In calculation the loosely-held, non-rigid dimer collision model and semiclassical method have been employed. The results show that the rate constants for the processes (a) are much greater than those for the processes (b). Also, it is found that the rate constants for the processes (a) increase with decreasing temperature and with increasing quantum number, while those for the processes (b) show the opposite tendencies. These findings are explained in terms of the sign and magnitude of the energy mismatch, ΔE.
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KEYWORD
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