Reactivity of Solvated Electrons in Radiolyzed Cyclohexane, Cyclohexane-2-Propanol and Methanol-Water

抄録

Hammett's reaction constants for the reactions of solvated electrons with substituted chrolobenzene series are 0.7 and 2.5 in cyclohexane-2-propanol and methanol-water systems respectively. The simple relation observed in alcoholic solvents between Hammett's reaction constants and the dielectric constant fails to apply to the present systems. These findings can be semiquantitatively explained as being a result of the closer correlation presented by Hammett's reaction constants to the transition energy for the optical excitation of solvated electrons rather than to the dielectric constants of the medium.