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Issue 23, 2004
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Reaction of carbon atoms, C (2p2, 3P) with C3H4 (allene and methylacetylene), C3H6 (propylene) and C4H8 (trans-butene): Overall rate constants and atomic hydrogen branching ratios.

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Abstract

The multichannel C + allene, methylacetylene, propylene and trans-butene reactions were studied, at room temperature, in a low-pressure fast-flow reactor. Carbon atoms were obtained from the reaction of CBr4 with potassium atoms. The overall rate constants were found to be (2.7 ± 0.5) × 10−10, (2.9 ± 0.4) × 10−10, (2.6 ± 0.4) × 10−10, and (1.9 ± 0.6) × 10−10 cm3 molecule−1 s−1, respectively. The absolute atomic hydrogen branching ratios have been measured by resonance fluorescence in the vacuum ultraviolet: H (C + C3H4 (allene)) = 1.00−0.06+0.00, H (C + C3H4 (methylacetylene)) = 0.85 ± 0.06, H (C + C3H6 (propylene)) = 0.51 ± 0.08, H (C + C4H8 (trans-butene)) = 0.33 ± 0.08.

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Article information


Submitted
19 Jul 2004
Accepted
11 Oct 2004
First published
27 Oct 2004

Phys. Chem. Chem. Phys., 2004,6, 5396-5401
Article type
Paper

Reaction of carbon atoms, C (2p2, 3P) with C3H4 (allene and methylacetylene), C3H6 (propylene) and C4H8 (trans-butene): Overall rate constants and atomic hydrogen branching ratios.

J. Loison and A. Bergeat, Phys. Chem. Chem. Phys., 2004, 6, 5396
DOI: 10.1039/B410911B

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