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- W1989272053 abstract "Formation of methyl radicals via the consecutive reactions H + C2H4 + M → C2H5 + M (1) and H + C2H5 → CH3 + CH3 (2a) was initiated by pulse radiolysis of 10–100 mbar H2 in the presence of ethylene. The kinetics of CH3 were studied by monitoring the transient infrared absorption at the Q(3, 3) line of the ν2 = 0 → 1 vibrational transition at 606.12 cm−1. Reaction (2a) proceeds in competition with the reaction H + C2H5 + M → C2H6 + M (2b). The methyl radicals are consumed by CH3 + CH3 + M → C2H6 + M (3), CH3 + C2H5 → products (4), and H + CH3 + M → CH4 + M (5). By computer simulations based on determined absolute radical yields, the observed formation and decay kinetics could be reproduced using the rate constants k2a = (7.5 ± 0.7) X 1010 M−1 s−1, k2b = (1.0 ± 0.1) X 1011 M−1 s−1, and k4 = (4.0 ± 0.2) X 1010 M−1 s−1 at 298 K and a total pressure of p(H2) = 100 mbar." @default.
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- W1989272053 date "1993-01-01" @default.
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- W1989272053 title "Kinetics of the reactions H + C2H4 → C2H5, H + C2H5 → 2CH3 and CH3 + C2H5 → products studied by pulse radiolysis combined with infrared diode laser spectroscopy" @default.
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- W1989272053 doi "https://doi.org/10.1016/0009-2614(93)85052-p" @default.
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