Yields and decay kinetics of the solvated electron in pulse radiolysis of 1-alkanols

The products of the yields of the solvated electron in 1-alkanols, G(e-sub(alk)), and the extinction coefficient of e-sub(alk) at its absorption maximum, epsilon(e-sub(alk)) sub(max), relative to the same product for the hydrated electron, G(e-sub(aq))epsilon(e-sub(aq))sub(max), for a 60 nsec irradiation at room temperature are given in parentheses after the name of each 1-alkanol: methanol (0.38), ethanol (0.42), 1-propanol (0.33), 1-butanol (0.30), 1-pentanol (0.28), 1-hexanol (0.31), 1-heptanol (0.27), 1-octanol (0.29), 1-nonanol (0.26), and 1-decanol (0.24). The decay kinetics of e-sub(alk) after 60 or 400 nsec of pulse irradiation of 1-alkanols, C1-C10, fit competitive pseudo-first order and second order (initial concentrations of both reactants the same) processes. Except for 1-propanol to 1-pentanol, the observed second order specific rates are a function of the dose per pulse. A mechanism is proposed for the above given decay kinetics of e-sub(alk) in C1-C10 1-alkanols. (author)