SYNTHESIS, CHARACTERIZATION AND COMPUTATIONAL STUDIES OF (E)-2-{[(2-AMINOPYRIDIN-3-YL)IMINO]-METHYL}-4,6-DI-TERT-BUTYLPHENOL

(E)-2-{[(2-Aminopyridin-3-yl)imino]-methyl}-4,6-di-tert-butyl-phenol (3), a ligand containing an intramolecular hydrogen bond, was prepared according to a previous literature report, with modifications, and was characterized by UV-vis, FTIR, H-1-NMR, C-13-NMR, HHCOSY, TOCSY and cyclic voltammetry. Computational analyses at the level of DFT and TD-DFT were performed to study its electronic and molecular structures. The results of these analyses elucidated the behaviors of the UV-vis and electrochemical data. Analysis of the transitions in the computed spectrum showed that the most important band is primarily composed of a HOMO -> LUMO transition, designated as an intraligand (IL) charge transfer.