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KMID : 1059519850290060592
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Journal of the Korean Chemical Society
1985 Volume.29 No. 6 p.592 ~ p.598
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Intermolecular Interaction and Molecular Energy Transfer ; Vibrational Relaxation of Highly Excited HF and DF
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Lee Chang-Soon
Lee Min-Joo
Kim Yoo-Hang
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Abstract
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The total vibrational deexcitation rate constants kv,v-1 of HF(v = 5-7) by HF(v = 0) and DF(v = 9-12) by DF(v = 0) including both the vibration to vibration (V → V) and vibration to rotation and translation (V → R, T) energy transfer channels have been calculated semiclas-sically using a simplified collision model. The calculated results are in reasonably good agreement with those obtained by experimental and other theoretical studies. The rate constants increase with increasing temperature and also with increasing v. They also show that the relaxation of the highly excited HF and DF occurs predominantly via the V → R, T path at low temperature. The effectiveness of the V → V path, however, increases as the temperature is raised.
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