Molecular conformation and electronic structure of azomethines. Part 6. Electronic spectra of N-benzylidenemethylamines

Abstract

The electronic spectra of some methyl derivatives of N-benzylidenemethylamine have been measured in the vapour phase and in various solvents. For the N-benzylidenemethylamine, CNDO/2 calculations confirm a coplanar E-configuration with the hydrogen atom of the N-methyl group eclipsed by the CN double bond. The theoretical interpretation of the electronic spectra using CNDO*Cl and P calculations is in line with the configurational and conformational results previously obtained by dipole moment analysis.