Synthesis and Characterization of New Zinc-phthalocyanine with Four Dodecenyl-benzoic Pendant Groups

Substituted zinc phthalocyanine was synthesized in this study. The reaction of 4- nitro Phthalonitrile with ZnCl2 in the presence of dimethyl amino ethanol (DMEA) afforded 4,4ʹ,4ʹʹ,4ʹʹʹ- tetranitro zinc phthalocyanine. This was reacted with 5-amino salicylic acid to yield tetra-(5-amino salicylic acid)zinc phthalocyanine. After that, dodecenyl succinic anhydride was added on amine group of benzoic rings afforded tetra-( (E)-5-(3-(dodec-1-enyl)-2,5-dioxopyrrolidin-1-yl)-2-hydroxybenzoic acid )zinc phthalocyanine. The phthalocyanine was separated and washed using different solvents. The newly synthesized compounds have been characterized by elemental analysis, FT-IR, 1H NMR and UV-Visible spectroscopy techniques