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Proceedings Paper

Laser photolysis-resonance fluorescence investigation of the reactions of hydroxyl radicals with CCl3CHO and CF3CHO as a function of temperature
Author(s): Gerard Laverdet; Georges Le Bras; Helene MacLeod; G. Poulet; S. Teton; Donncha J.P. Scollard; John J. Treacy; H. W. Sidebottom
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Paper 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.

Paper Details

Date Published: 12 February 1993
PDF: 13 pages
Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140210
Show Author Affiliations
Gerard Laverdet, Lab. de Combustion et Systemes Reactifs/CNRS (France)
Georges Le Bras, Lab. de Combustion et Systemes Reactifs/CNRS (France)
Helene MacLeod, Lab. de Combustion et Systemes Reactifs/CNRS (France)
G. Poulet, Lab. de Combustion et Systemes Reactifs/CNRS (France)
S. Teton, Lab. de Combustion et Systemes Reactifs/CNRS (France)
Donncha J.P. Scollard, Univ. College Dublin (Ireland)
John J. Treacy, Univ. College Dublin (Ireland)
H. W. Sidebottom, Univ. College Dublin (Ireland)


Published in SPIE Proceedings Vol. 1715:
Optical Methods in Atmospheric Chemistry

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