Comments on the measurements of vibrational intensity in the photoelectron spectra of N2 and CO, for the ionic ground state

Abstract

Abstract Over 50 experimental values of the photoelectron intensity I ( v ′ = 1) (normalized to I ( v ′ = 0) equal to 100) for the N 2 + , X 2 Σ g + photoelectron band, as well as 17 values of I ( v ′ = 1) for CO + , X 2 Σ + , are gathered or calculated from literature data, compared and discussed. Differences in the types of analyzer used, the instrumental conditions, the character of the UV light employed and the type of possible intensity corrections make such a comparison difficult, leave unexplained discrepancies and show the necessity of more systematic experimental investigations.