Electron trapped in aqueous clathrates solid at room temperature

Abstract

A preliminary pulse radiolytic study is reported on the specific form of solid-state water, i.e. aqueous clathrate (50% w/w of water), showing the transient presence of a trapped electron (e ???(aq) −) with yields comparable to G ???- in water. The e ???(aq) − has a maximum absorption at 620 nm and decays in two first-order overlapping processes with t 1 2 = 2–3 μs (fast component amounting to = 10% of all electrons) and t 1 2 = 160 μs (main part of the electrons). In the presence of N 2O there is only one mode of decay observed, first order with t 1 2 = 5.3 μs.