Thin Films from Polyazamacrocycles: Preparation and Spectroscopic Characterization

Abstract

The Langmuir-Blodgett films have received increasing interest in the last years and many papers and patents have appeared in the literature. This review analyzes the results obtained mainly in the author's laboratories from mono- and multilayer film built up with polyazamacrocycles, included symmetrically and unsymmetrically substituted tetraazaporphyrins and tetraazaannulenes. Metal derivatives and free bases have been employed. The characterization of the various systems has been carried out with electron spin resonance (ESR) and optical spectroscopy