Intensities of analogous Rydberg series in CF 3Cl, CF 3Br and in those of their isolated atoms, Cl and Br

Abstract

In the present Letter, we have studied the Rydberg spectroscopic behaviour of the CF 3Cl and CF 3Br isovalent molecules. Absorption oscillator strengths for both molecules have been calculated with the molecular-adapted quantum defect orbital (MQDO) approach. We have sought and found important similarities between the spectral intensities of analogous transitions in these isovalent molecules. Further similarities with the spectra of their isolated halogen atoms has not only served the purpose of assessing the quality of our calculations, but may also offer some relevant practical use.