Model Potentials and Molecular Rydberg Series

Abstract

<p>M0del potential calculations have been carried out on the πg → nsσg, npσu and npπu Rydberg series of CO₂, CS₂ and Cse₂. The molecular potential was represented by a super-position of atomic model potentials which were calibrated to atomic data. The Rydberg M.O. was expanded about the molecular mid-point in many members of a linear combination of hydrogen functions and of a Rydberg series were obtained in a single calculation on a computer. The results of the calculations were used to check previous assignments of Rydberg series in CO₂ and CS₂. The previously unreported vacuum u-v spectrum of CSe₂ was observed in the region from 1200-2000 Å, and analysed using the model calculations.</p>