An empirical method for the evaluation of electron affinities

Abstract

An empirical correlation involving electron affinity (E_ea), first ionization potential (E_i) and the lowest singlet excited-state energy (ΔE_0–0¹) has been obtained through a multiple regression analysis performed on the literature data of model monocyclic substituted aromatic compounds. The E_ea of a series of aryl alkyl sulphides has been evaluated using this correlation. The resulting data are within the expected range, when compared with those of the model compounds.