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Gas phase decomposition and isomerization reactions of 2-pentoxy radicals

✍ Scribed by S. Dóbé; T. Bérces; F. Márta

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
821 KB
Volume
18
Category
Article
ISSN
0538-8066

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✦ Synopsis

The rate of decomposition of 2-pentoxy radical to acetaldehyde and n-propyl radical has been studied in the presence of NO in competition with nitrite formation at and above 200 kPa pressure over the temperature range of 363-413 K. The rate coefficient for the decomposition is given as log(k,,/s-') = (14.2 ? 0.4) -(13.8 f 0.8) kcal mol-'/RT In 10. Isomerization of 2-pentoxy radical by 1,5-hydrogen shift has been investigated in the range 279-385 K in competition with the decomposition in a static system, with methyl radicals present in high concentration to ensure trapping of the isomerized free radicals. The rate coefficient for isomerization is given as log(kJ/s-') = (11.1 f 0.7) -(9.5 f 1.1) kcal mol-'/RT In 10. The implications of the results for atmospheric chemistry are discussed.

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