Pulse radiolysis, flash photolysis, and shock wave study of the recombination H + benzyl yields toluene at 300 and 1,300-1,650 K

Journal Article · Thu Jun 28 00:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100376a015· OSTI ID:6517543

Ackermann, L; Hippler, H; Pagsberg, P; Reihs, C; Troe, J ^[1]

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1. Institut fuer Physikalische Chemie der Universitaet Goettingen (West Germany) Riso National Laboratory (Denmark)

Pulse radiolysis, discharge flash photolysis, and laser flash photolysis have been employed to study the recombination reaction H + benzyl {yields} toluene at room temperature. Both H atoms and benzyl radicals were monitored. The same reaction was studied directly in shock waves between 1,300 and 1.650 K. The value of the high-pressure recombination rate constant of (2.5 {plus minus} 0.8) {times} 10{sup 14} cm{sup 3} mol{sup {minus}1} s{sup {minus}1} was found to be independent of the temperature between 300 and 1,650 K. It is argued that high-pressure rate constants for other recombination reactions should also have very small temperature coefficients over wide temperature ranges. Room temperature rate constants for addition of H atoms to toluene, cycloheptatriene, p-xylene, benzene, phenyl, and p-methylbenzyl are also reported.

• OSTI ID: 6517543
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 94:13; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
BENZYL RADICALS
RECOMBINATION
HYDROGEN
DATA ANALYSIS
EXPERIMENTAL DATA
MEASURING INSTRUMENTS
MEASURING METHODS
MEDIUM TEMPERATURE
PHOTOLYSIS
RADIOLYSIS
SHOCK WAVES
VERY HIGH TEMPERATURE
ARYL RADICALS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
ELEMENTS
INFORMATION
NONMETALS
NUMERICAL DATA
PHOTOCHEMICAL REACTIONS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
400600* - Radiation Chemistry