Experimental determination of the rate constant of the reaction between C2H5O2 and OH radicals

Eszter P. Faragó, Coralie Schoemaecker, Béla Viskolcz, Christa Fittschen

Research output: Article

17 Citations (Scopus)


The rate constant of the reaction C2H5O2 + OH → Products has been measured at T = 296 K using laser photolysis coupled to CRDS and LIF. C2H5O2 was generated from the reaction of Cl-atoms with C2H6 at 55 Torr O2, whereby Cl-atoms were generated by 248 nm photolysis of (COCl)2. OH radicals were generated simultaneously by photolysing H2O2. The initial Cl-concentration (and hence C2H5O2) was determined in separate experiments by replacing C2H6 by CH3OH and thus conversion of Cl-atoms to HO2. The time-resolved OH decay was detected in excess of C2H5O2. A fast rate constant of k = (1.2 ± 0.3) × 10-10 cm3 s-1 was determined.

Original languageEnglish
Pages (from-to)196-200
Number of pages5
JournalChemical Physics Letters
Publication statusPublished - jan. 5 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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