The interactional behaviors and photo-physical properties of azo-salicylaldehyde ligands in solvents media

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Nov 5:150:696-703. doi: 10.1016/j.saa.2015.06.015. Epub 2015 Jun 12.

Abstract

A quantitative study of solvent effects on photo-physical properties of some azo-salicylaldehyde Schiff Bases ligands, with various substituent and alkyl group, was carried out, at room temperature. The solvatochromic behavior of these substances and their solvent-solute interactions, both specific and non-specific, was analyzed using linear solvation energy relationship concept, suggested by Kamlet-Taft. The ground and excited state dipole moments of these substances and their molecular resonance structures were also evaluated via solvatochromic shift method.

Keywords: Charge transfer; Dipole moment; Multi-parameter polarity scale; Salicylaldehyde azo Schiff Base.