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American Chemical Society, The Journal of Physical Chemistry A, 28(107), p. 5419-5426, 2003

DOI: 10.1021/jp027465r

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Experimental and Theoretical Studies of the Methylidyne CH(X2Π) Radical Reaction with Ethane (C2H6): Overall Rate Constant and Product Channels

This paper is available in a repository.
This paper is available in a repository.

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Abstract

The reaction of CH with ethane was studied, at room temperature, in a low-pressure fast-flow reactor. CH(X2Π, v = 0) radicals were obtained from the reactions of CHBr3 with potassium atoms. The overall rate constant is found at 300 K to be (1.6 ± 0.6) × 10-10 cm3 molecule-1 s-1. The absolute atomic hydrogen production was determined by V.U.V. resonance fluorescence, the reference used being the H production from the CH + CH4 reaction. The H atoms production from the CH + C2H6 reaction was found equal to 22 ± 8%. Ab initio studies of the different stationary points relevant to this reaction and RRKM calculations have been performed for comparison with experimental results.