The Dissociative Ionization of Nitrous Oxide. A comparison between Electroionization and HeI and NeI Photoionization.

The photoelectron spectrum of N2O and the kinetic energy distributions of NO+, N2+, O+ and N+ have been recorded with HeI and NeI resonance lines. At 21.22 eV the distributions are similar to those observed by electroionization at comparable energy. The NeI resonance line produces O+ and NO+ ions. Their respective kinetic energy distributions are related to the change induced in the N2O+(A2Sigma+) photoelectron band excited by the NeI resonance line.