12 February 1993 Laser photolysis-resonance fluorescence investigation of the reactions of hydroxyl radicals with CCl3CHO and CF3CHO as a function of temperature
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Abstract
Absolute rate constants for the reactions of OH radicals with CCl3CHO and CF3CHO have been determined as a function of temperature using a pulsed laser photolysis-resonance fluorescence technique. The rate constant for reaction with CCl3CHO, k(CCl3CHO) equals 1.4 +/- 0.2 cm3 molecule-1 s-1, was found to be virtually independent of temperature over the range 233 - 313 K while the Arrhenius expression obtained for reaction with CF3CHO was k(CF3CHO) equals 3.5 +/- 1.0 X 10-12 exp [-(488 +/- 57)/T] cm3 molecule-1 s-1. Reactivity trends and atmospheric implications are discussed.
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Gerard Laverdet, Gerard Laverdet, Georges Le Bras, Georges Le Bras, Helene MacLeod, Helene MacLeod, G. Poulet, G. Poulet, S. Teton, S. Teton, Donncha J.P. Scollard, Donncha J.P. Scollard, John J. Treacy, John J. Treacy, H. W. Sidebottom, H. W. Sidebottom, } "Laser photolysis-resonance fluorescence investigation of the reactions of hydroxyl radicals with CCl3CHO and CF3CHO as a function of temperature", Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140210; https://doi.org/10.1117/12.140210
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