Partial molal absorption spectroscopy. Application to solvated electrons

Abstract

Measured solvated-electron absorbances in ammonia–methylamine mixtures have been analysed to obtain the partial molal absorption spectra of the two different solvated-electron species presumed to coexist in an equimolar solvent mixture. Each of the latter spectra appears to be essentially a shifted version of the solvated-electron absorption spectrum obtained in the pertinent pure solvent, which serves to establish its identity. Seen here for the first time, these spectra provide the most direct evidence yet available attesting to the actual coexistence of the two kinds of solvated electrons.