Rate constants for the gas-phase reactions of OH radicals with 1,3-butadiene and allene at 1 atm in Ar and over the temperature range 305-1173 K
Absolute rate constants for the gas-phase reaction of the OH radical with 1,3-butadiene and allene in an argon atmosphere were measured at 1 atm over the temperature range 305-1173 K. It was not possible to determine the rate of the H abstraction reaction from either allene or 1,3-butadiene; an upper limit for these rates is about twice that which one would predict from the OH + ethylene reaction. At temperatures below 600 K, k(OH + 1,3-butadiene) = (1.4 +/- 0.1) x 10/sup -11/ exp((440 +/- 40)/T) cm/sup 3//(molecule.s) and k(OH + allene) = (6.7 +/- 0.9) x 10/sup -12/ exp((100 +/- 50)/T) cm/sup 3//(molecule.s). Above 600 K the rate constant of the allene reaction decreases weakly while the rate constant for the 1,3-butadiene reaction decreases markedly.
- Research Organization:
- Argonne National Lab., IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5477709
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:1; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ALLENE
ARGON
BUTADIENE
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DIENES
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
HIGH TEMPERATURE
HYDROCARBONS
HYDROXYL RADICALS
INFORMATION
KINETICS
LOW PRESSURE
MEDIUM TEMPERATURE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYENES
RADICALS
RARE GASES
REACTION KINETICS
TEMPERATURE DEPENDENCE
VERY HIGH TEMPERATURE