The rate coefficient of the C3H3 + C3H3 reaction-dipropargyl oxalate as a new source for C3H3 radicals

B. R. Giri*, H. Hippler, M. Olzmann, A. N. Unterreiner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Much attention is paid to the self reaction of propargyl radicals (C3H3) as an important source for C6H6 species under fuel-rich conditions. To obtain halogen-free reaction systems, the use of dipropargyl oxalate as a new, clean source for C3H3 radicals was studied. The transient UV absorption after laser-flash photolysis of dipropargyl oxalate at 193 nm was studied and found that the initial absorption between 310 and 360 nm corresponded to the C3H3 spectrum in the literature. The absorbance-time profiles recorded at the absorption maximum of 332.5 nm could be reproduced by a second-order rate law with a rate coefficient of (5.5 × 10-11 cc/molecule-sec independent of total pressure (1-150 bar) and temperature (373-425 K). Original is an abstract.

Original languageEnglish (US)
Title of host publicationInternational Symposium on Combustion Abstracts of Works-in-Progress Posters
Pages222
Number of pages1
StatePublished - 2002
Externally publishedYes
Event29th International Symposium on Combustion - Sapporo, Japan
Duration: Jul 21 2002Jul 26 2002

Other

Other29th International Symposium on Combustion
CountryJapan
CitySapporo
Period07/21/0207/26/02

ASJC Scopus subject areas

  • Engineering(all)

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