Reactions in CCl4 films deposited onto a cold gold substrate induced by charge transfer vs (0–5) eV free electrons

Abstract

Reactions induced by electrons may arise from the charge transfer when molecules are deposited onto a metal substrate or from bombardment. Here, we comparatively study, by using the same experimental set-up, the reactions induced to carbon tetrachloride via the two processes. We found that free electrons bombardment with energy below 5 eV trigger the production of Cl2 as for the charge transfer reaction. From the present measurements, no formation of chlorocarbon chains from the irradiation of carbon tetrachloride films by electrons were observed at low energies.