Kinetics Database Resources
Title: Low-temperature kinetics of reactions of OH radical with ethene, propene, and 1-butene
Journal: J. Phys. Chem. A
Page(s): 10055 - 10062
Reference type: Journal article
C2H4 + ·OH → Products
From the Abstract:
The kinetics of the reactions of the OH radical with ethene (k1), propene (k2), and 1-butene (k3) are studied over a temperature range of T ) 96-296 K. The low-temperature environment is provided by a pulsed Laval nozzle supersonic expansion of nitrogen with admixed radical precursor and reactant gases. The OH radicals are produced by pulsed photolysis of H2O2 at 248 nm. Laser-induced fluorescence of the OH radicals is used to monitor the OH decay kinetics to obtain the bimolecularrate coefficients. At T = 296 K, the rate constants k1, k2, and k3 are also measured as a function of total pressure. The room-temperature falloff parameters are used as the basis for extrapolation of the low-temperature kinetic data, obtained over a limited range of gas number density, to predict the high-pressure limits of all three rate coefficients at low temperatures. All three high-pressure rate constants show a slight negative temperature dependence, which is generally in agreement with both low-temperature and high-temperature kinetic data available in the literature.
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Rate constant values calculated from the Arrhenius expression: