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Issue 15, 2001
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Rate constants and Arrhenius parameters for the reactions of OH radicals and Cl atoms with CF3CH2OCHF2, CF3CHClOCHF2 and CF3CH2OCClF2, using the discharge-flow/resonance fluorescence method

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Abstract

Rate constants were determined for the reactions of OH radicals and Cl atoms with the three partially halogenated methyl ethyl ethers, CF3CH2OCHF2, CF3CHClOCHF2 and CF3CH2OCClF2, using discharge-flow techniques to generate the OH radicals and the Cl atoms and resonance fluorescence to observe changes in their relative concentrations in the presence of added ether. For each combination of radical and ether, experiments were carried out at three temperatures between 292 and 410 K, yielding the following Arrhenius expressions for the rate constants within this range of temperature:

The results are compared with those obtained previously for the same and related reactions of OH radicals and Cl atoms, and the atmospheric implications of the results are considered briefly.

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Article information


Submitted
30 Apr 2001
Accepted
05 Jun 2001
First published
11 Jul 2001

Phys. Chem. Chem. Phys., 2001,3, 3064-3069
Article type
Paper

Rate constants and Arrhenius parameters for the reactions of OH radicals and Cl atoms with CF3CH2OCHF2, CF3CHClOCHF2 and CF3CH2OCClF2, using the discharge-flow/resonance fluorescence method

S. D. Beach, K. M. Hickson, I. W. M. Smith and R. P. Tuckett, Phys. Chem. Chem. Phys., 2001, 3, 3064
DOI: 10.1039/B103883B

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