Laser studies of methyl radical reactions with Cl2 and Br2: Absolute rate constants, product vibrational excitation, and hot radical reactions

1984 ◽  
Vol 80 (8) ◽  
pp. 3656-3667 ◽  
Author(s):  
Laurie J. Kovalenko ◽  
Stephen R. Leone
Keyword(s):  
Rate Constants ◽  
Vibrational Excitation ◽  
Radical Reactions ◽  
Absolute Rate ◽  
Methyl Radical

Absolute Rate Constants for Alkoxycarbonyl Radical Reactions

1998 ◽  
Vol 63 (4) ◽  
pp. 1226-1232 ◽  
Author(s):  
Pavel A. Simakov ◽  
Felix N. Martinez ◽  
John H. Horner ◽  
Martin Newcomb
Keyword(s):  
Rate Constants ◽  
Radical Reactions ◽  
Absolute Rate

Individual rate constants of methyl radical reactions in the pyrolysis of dimethyl ether

1977 ◽  
Vol 55 (23) ◽  
pp. 4128-4134 ◽  
Author(s):  
Andrew M. Held ◽  
Kim C. Manthorne ◽  
Philip D. Pacey ◽  
Howard P. Reinholdt
Keyword(s):  
Dimethyl Ether ◽  
Rate Constants ◽  
Flow System ◽  
Average Concentration ◽  
Radical Reactions ◽  
Methyl Radical ◽  
Warm Up ◽  
Secondary Reactions ◽  
Ultraviolet Absorption Spectroscopy ◽  
Individual Rate

Dimethyl ether was pyrolyzed in a flow system at 10 to 80 Torr and 1005 K. The average concentration of CH3 radicals in the reactor was measured by ultraviolet absorption spectroscopy. Product yields were measured by gas chromatography. The system was simulated using a computer program, taking into account the warm-up of the entering gas and the occurrence of secondary reactions. Rate constants were varied to find values consistent with experimental observations. The limiting, high pressure rate constant for the recombination of CH3 was estimated to be 1010.5 ± 0.5ℓ mol−1 s−1. Estimated rate constants for the reactions[Formula: see text]were 107.12 ± 0.2ℓ mol−1 s−1 and 107.5 ± 0.4ℓ mol−1 s−1, respectively.

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