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Laser fluorescence study of vibrational energy transfer in CH3Cl
A laser induced infrared fluorescence technique has been used to measure both vibration to vibration and vibration to translation/rotation energy transfer rates in CH3Cl. The V-T/R rates were measured using H2, D2, CH4, and rare gases as collision partners. Qualitative comparison of these data with...
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Published in: | The Journal of chemical physics 1973-01, Vol.58 (7), p.2684-2689 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A laser induced infrared fluorescence technique has been used to measure both vibration to vibration and vibration to translation/rotation energy transfer rates in CH3Cl. The V-T/R rates were measured using H2, D2, CH4, and rare gases as collision partners. Qualitative comparison of these data with V → T and V → R theories indicates that the V → T mechanism dominates for collisions with small reduced masses while the V → R mechanism dominates for collisions with large reduced masses. The V–V rate equilibrating the ν6 and ν3 modes was measured as a function of CH3Cl pressure and was found to be 76 msec−1· torr−1. A lower limit was also obtained for the rate of V–V energy transfer from states near 1000 cm−1 to high lying states near 3000 cm−1. |
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ISSN: | 0021-9606 1089-7690 |
DOI: | 10.1063/1.1679568 |