Kinetics of the reactions of alkyl radicals (CH sub 3 , C sub 2 H sub 5 , i-C sub 3 H sub 7 , and t-C sub 4 H sub 9 ) with molecular bromine

Journal Article · Thu Apr 05 00:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100370a050· OSTI ID:6538555

Timonen, R S; Seetula, J A; Gutman, D ^[1]

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1. Catholic Univ. of America, Washington, DC (USA)

The gas-phase kinetics of the reactions of four alkyl radicals (CH{sub 3}, C{sub 2}H{sub 5}, i-C{sub 3}H{sub 7}, and t-C{sub 4}H{sub 9}) with molecular bromine have been studied over the temperature range 296-532 K. The reactions were isolated for quantitative study in a heatable tubular rector coupled to a photoionization mass spectrometer. Radicals were homogeneously generated in the reactor by pulsed photolysis of suitable precursor molecules at 193 or 248 nm. The subsequent decays of the radical concentration in the presence of different Br{sub 2} concentrations were monitored in time-resolved experiments. Rate constants were obtained at five temperatures.

• OSTI ID: 6538555
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:7; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540110*
ALKYL RADICALS
ATMOSPHERIC CHEMISTRY
BROMINE
CHEMISTRY
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
HALOGENS
INFORMATION
KINETICS
LAYERS
MEASURING INSTRUMENTS
MEASURING METHODS
NONMETALS
NUMERICAL DATA
OZONE LAYER
RADICALS
REACTION KINETICS