Synthesis of Metal Complexes of Some Formazans Drived From Cinnamaldehyde and Investigation of Their Dyeing Properties Using Different Methods

Abstract

In this study, two formazans were synthesized by coupling cinnamaldehyde phenyl hydrazone obtained by activation ofcinnamaldehyde with phenylhydrazone, with diazonium salts of anthranilic acid and sulfonilic acid. The complexes of Co+2, Ni+2,Cu2+ salts of these formazans were also synthesized. These compounds were characterized by elemental analysis, infrared (IR),ultraviolet–visible (UV–vis),1H nuclear magnetic resonance (1H -NMR) and 13C- NMR spectral data. Investigation of thesecompounds as dyes were studied. In the present experimental approach, two methods were employed; The first one was direct dyeingwith these complexes, and the other one was complex formation on the fibres. Finally fastness values (test) were calculated andsignificantly higher values are obtained.