Studies on Photochromic Salicylideneanilines. II. The π-Electronic States and Reactivities of Salicylideneaniline Tautomers as studied by the Pariser-Parr-Pople Method

Abstract

The π-electronic structures of the photochromic salicylideneaniline tautomers were investigated on the basis of the Pariser-Parr-Pople method. The calculated results were used for interpretation of the experimental ultraviolet spectra and the effects of the π-π^* excitation upon the intramolecular hydrogen-transfer.