Optical Absorption Spectra and Decay of Solvated Electrons in the Pulse Radiolysis of Dilute Solutions of Ethanol in Alkane Solvents Effects of Hydrocarbon Chain Branching for the period 1 September, 1971 - 26 July, 1972

摘要

The absorption spectrum of the solvated electron in solutions of ethanol in 3-methylpentane, 2, 2-dimethylbutane and neopentane is, above a few mole percent of ethanol, essentially independent of the presence of hydrocarbon at room temperature. Above 20 mole percent solvated electron yields per unit of dose increase in the same order as radiolytic free-ion yields in the pure hydrocarbons. Below 10 mole percent progressively greater concentrations of ethanol are required for observation of a given initial solvated electron yield in reverse of this order, and the halftime for decay of the solvated electron decreases in the same order at a given ethanol concentration. These observations are discussed briefly in the context of preferential solvation of free electrons by microscopic aggregates of ethanol molecules.