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Relaxation of DF(v = 1) by various polyatomic molecules

✍ Scribed by Jerry F. Bott

Publisher: John Wiley and Sons
Year: 1977
Tongue: English
Weight: 417 KB
Volume: 9
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550090111

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✦ Synopsis

By means of the technique of laser-induced fluorescence, the room-temperature vibrational relaxation of DF(u = 1) has been studied in the presence of several polyatomic chaperones. The rate coefficients obtained [in units of (p~ec.torr)-~] are CH,, 0.22; CzHs, 0.61; C4Hl0,1.26; 1.0 x 10-3; CBrF3, 5.6 X lo-,; NF3, 5.1 X lo-,; SO2, 1.27 X and BF3, 7.1 X Results are also reported for vibrational relaxation rate coefficients for HF(u = 1) in the presence of the following chaperones: CH4, 2.6 X 10-2; GHs, 5.9 X C3H8, 8.4 X 10-2; and C4Hl0, 0.128. rate coefficients for D F are approximately an order of magnitude larger than for HF. The deactivation rate coefficient of DF(v = 1 ) by CH, was found to decrease with increasing temperature between 300 and 740°K.

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