Synthesis and characterization of new schiff's bases containing an azo group

By V. Padmini

Abstract

In the present study, a series of Schiff's bases: 1a-1g; 5-((4-n-methoxyphenyl) azo)-N-(4'-n-alkoxyphenyl)salicylaldimine homologues have been synthesized and characterized by IR, NMR spectroscopy and elemental analyses. The mesomorphic character of these compounds was mainly studied by using polarizing microscope equipped with a heating and cooling stage. These homologues series do not exhibit liquid crystalline property. Electrochemical reductions were studied by use of Cyclic-Voltammetric technique. These compounds gave one peak and are irreversible in nature in presence of Tetra butyl ammonium bromide (TBAB) as supporting electrolyte. The electrochemical reductions of imines group were found to be diffusion controlled. All compounds are showing very good anti microbiol activity.

 

Key Words : Azo compounds; Schiff's bases; Salicylaldimine; Cyclic-Voltammety, Biological activities.

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