Absolute Rate Constants for the Reactions of Some Carbon-Centered Radicals with 2,2,6,6-Tetramethylpiperidine-N-oxyl

Article abstract of DOI:10.1021/jo00243a007

A time-resolved, laser flash photolysis study of the reaction of a variety of carbon-centered radicals with Tempo (2,2,6,6-tetramethylpiperidine-N-oxyl) at room temperature is reported.Some of the radicals examined and the corresponding measured rate constants (M^-1 s^-1) are CH3(CH2)7CH2-radical, 1.2 * 10⁹; (CH3)3C-radical, 7.6 * 10⁸; C6H5CH2-radical, 4.9 * 10⁸; C6H5C(CH3)2-radical, 1.2 * 10⁸; (C6H5)2CCH3-radical, 4.6 * 10⁷.Arrhenius parameters have also been determined for the n-nonyl and benzyl radicals.