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A kinetic study of the CF3CFHO2 + NO reaction and the dissociation of the CF3CFHO radical

✍ Scribed by Ashish Bhatnagar; Robert W. Carr

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 582 KB
Volume: 238
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00360-6

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✦ Synopsis

The kinetics of the reaction of CF,CFHO, radicals with NO was studied by flash photolysis-time-resolved mass spectrometry. From the kinetic growth rate of NO: molecular ions the rate coefficient of the reaction CF,CFHO, + NO -+ CF,CFHO + NO, was determined to be k = (1.31 &-0.30) X 10-l' cm3 molecule-' s -I in the pressure range 12-25 Torr at 324 f 1 K. Measurements of the total NO, yield indicated that the CF,CFHO radicals were completely dissociated by C-C bond scission on the 50 ms time scale of the experiments. The results are discussed in the context of atmospheric chemistry of HFC-134a.

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