Abstract
AbstractThe gas‐phase reaction of CF3 radicals, generated by photolysis of perfluoroacetic anhydride, with C6F5Cl was studied in the temperature range 318–473 K and total pressures between 23 and 41 Torr. CF3 radicals react with C6F5Cl according to the following mechanism:magnified imageIt was found that the addition reaction becomes reversible above 390 K. The addition rate parameters can be summarized in the following equation: where θ = 2.303 R T kJ mol−1 and kc is the recombination constant of CF3 radicals. A correlation between log [(kadd/k1/2c) and the ionization potentials for 15 aromatic compounds was found.
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