Kinetics of the reaction of CH3O2 radicals with NO2

T.J. Wallington, O.J. Nielsen, K. Sehested

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    The kinetics of the gas-phase reaction of CH3O2 radicals with NO2 were studied at 295 K in 0.5-14 arm of SF6 diluent using pulse radiolysis combined with time-resolved UV-VIS spectroscopy. Rate data were obtained by following the loss of CH3O2 using a monitoring wavelength of 260 nm. The results were well described using the Tree formula with F-c = 0.40 +/- 0.09, k(0) = (1.46 +/- 0.50) x 10(-30) cm(6) molecule(-1) s(-1) and k(infinity) = (1.81 +/- 0.25) x 10(-11) cm(3) molecule(-1) s(-1) These results are compared to the previous data and discussed in terms of reactivity trends and the atmospheric chemistry of peroxy radicals. (C) 1999 Elsevier Science B.V. All rights reserved.
    Original languageEnglish
    JournalChemical Physics Letters
    Issue number3-4
    Pages (from-to)456-460
    Publication statusPublished - 1999


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