Photoelectron spectroscopy of transient species. The CS molecule

Abstract

The vacuum ultra-violet photoelectron spectrum of the CS molecule formed by electrodeless discharge of carbon disulphide or carbon disulphide/rare gas mixtures is reported. Four bands corresponding to the first four ionization potentials are observed, with associated vibrational fine structure in each case. The ionizing transitions responsible for these bands are assigned by comparison with the results of a CNDO calculation of CS⁺ and with the calculated and observed values for N₂ and CO.