SPECTRAL SHIFT OF TRAPPED ELECTRONS IN GLASSY ALCOHOLS IRRADIATED AT 4.2 K

Careful examination of glassy ethanol, and other alcohols for comparison, γ-irradiated at 4.2 K indicates that the initial absorption spectrum of trapped electrons has two components: one is due to IR-absorbing electrons and the other to visible absorbing electrons. Both the electrons are stabilized upon thermal annealing at 77 K independently and slightly, so that their absorption maxima shift to the blue by only (1-2) × 103 cm-1. The apparent large shift of the absorption maximum from the IR to the visible region, observed in the glassy ethanol, is principally due to the selective decay of the IR-absorbing electrons. © 1979.