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  • Title: Rate coefficients for the reaction of iodine oxide with methyl peroxy radicals.
    Author: Dillon TJ, Tucceri ME, Crowley JN.
    Journal: Chemphyschem; 2010 Dec 17; 11(18):4011-8. PubMed ID: 20963744.
    Abstract:
    Pulsed laser photolysis radical generation is used to study the title reaction IO+CH(3)O(2)→products. Sensitive and selective laser-induced fluorescence detection of IO allows excess CH(3)O(2) conditions to be maintained throughout, ensuring minimal interference from other fast IO reactions. The rate coefficients, k(5)(296 K)=(3.4±1.4)×10(-12) cm(3) molecule(-1) s(-1), are obtained relative to a well-characterised reference value (k(3) for IO+HO(2)). This result agrees well with a previous determination from this laboratory and demonstrates that the above reaction proceeds an order of magnitude slower than suggested in other recent experimental and theoretical studies. Implications for HOx production/O(3) destruction within the marine boundary layer are briefly discussed.
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