Rate constant determination of the reaction of metastable N(2D,2P) with NO2 using moderated nuclear recoil atoms

Ren Iwata, Richard A. Ferrieri, Alfred P. Wolf

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    12 Citations (Scopus)


    The kinetics of the reaction N(2D,2P) + NO2 were studied by using moderated nuclear recoil atoms to generate thermalized metastable atomic nitrogen, 2D and 2P, at a [NO2]/[N] ratio of 1013. Branching ratios were obtained for the following channels of reaction: N + NO2 → N2O + O (k1a); N + NO2 → 2NO (k1b); N + NO2 → N2 + O2 (k1c); N + NO2 → N2 + 2O (k1d). The distribution of channels 1a:1b:(1c + 1d) was measured to be 1.00:0.65:0.27. An upper limit for the overall rate constant for reaction was also evaluated at 3.3 × 10-13 cm3 molecule-1 s-1 (293 K) by using competitive kinetic measurements of the formation of radioactive nitrogen-13 labeled products. This rate constant is at least an order of magnitude smaller than previously reported values for the ground-state N(4S) + NO2 reaction.

    Original languageEnglish
    Pages (from-to)6722-6726
    Number of pages5
    JournalJournal of physical chemistry
    Issue number25
    Publication statusPublished - 1986 Jan 1

    ASJC Scopus subject areas

    • Engineering(all)
    • Physical and Theoretical Chemistry

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