Photoelectron spectra of selenium dichloride and diselenium dichloride

Abstract

The He(I) photoelectron spectra of selenium dichloride, SeCl₂, and diselenium dichloride, Se₂Cl₂, have been obtained by measurements on the gaseous products of the reaction of chlorine with powdered selenium at room temperature. The spectra correlate well with those of the more stable sulphur analogues and with the results of non-empirical valence-electron core-pseudopotential molecular orbital calculations.