Formation of H and D atoms in pyrolysis of benzene-d/sub 6/, chlorobenzene, bromobenzene, and iodobenzene behind shock waves
Highly dilute mixtures of benzene-d/sub 6/, chlorobenzene, bromobenzene (including the 4-d and 2,4,6-d/sub 3/ isotopic compounds and iodobenzene in argon were pyrolyzed behind incident shock waves with a total pressure of 0.4 atm and temperatures between 1450 and 1900 K. H and D atom concentrations were measured, both of them for the partially deuteriated bromobenzenes. Rate constants for dissociation of benzene and of the phenyl radical were determined, but attempts to deduce the specific mechanism or mechanisms of phenyl radical dissociation from the product distributions from partially deuteriated bromobenzenes were unsuccessful. RRKM calculations were made to evaluate unimolecular falloff and to evaluate the rate constant for dissociation of C/sub 6/H/sub 6/ from that of C/sub 6/D/sub 6/.
- Research Organization:
- Wright State Univ., Dayton, OH (USA)
- DOE Contract Number:
- AC02-76ER02944
- OSTI ID:
- 6861705
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:9; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
AROMATICS
BENZENE
BROMINATED AROMATIC HYDROCARBONS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLORINATED AROMATIC HYDROCARBONS
DATA
DECOMPOSITION
DEUTERIUM
DEUTERIUM COMPOUNDS
ELEMENTS
EXPERIMENTAL DATA
HALOGENATED AROMATIC HYDROCARBONS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
IODINATED AROMATIC HYDROCARBONS
ISOTOPE ENRICHED MATERIALS
ISOTOPES
KINETICS
LIGHT NUCLEI
MATERIALS
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC BROMINE COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
PYROLYSIS
REACTION KINETICS
STABLE ISOTOPES
THERMOCHEMICAL PROCESSES
YIELDS