Radiation and Photochemistry Section annual report, October 1992--November 1993

The research described in this survey is a study of transient intermediates and chemistry induced by energetic radiation in the condensed phase. The survey is presented in two major parts: the first one studies ions, excited states, and other transients in the condensed phase; the second one studies the role of solvents in chemical reactivity. Some highlights of the past year were observations of ion-molecule reactions of excited aromatic cations via flash photolysis and transient dc conductivity; anion solvation study revealing role of solvent molecular structure; zeolite matrix study of C{sub 7}H{sub 8} radical cation chemistry; and H atom reaction with O{sub 2}, I{sup {minus}}, and comparison of diffusion of H, D, and muonium in ice. Refs, 25 figs, 5 tabs