Synthesis and characterization of near-IR absorbing metal-free and zinc(II) phthalocyanines modified with aromatic azo groups

Authors : Mukaddes ÖZÇEŞMECİ

Pages : 32-41

Doi:10.18596/jotcsa.23804

View : 22 | Download : 12

Publication Date : 2015-05-07

Article Type : Research Paper

Abstract :Metal-free and zincinsert ignore into journalissuearticles values(II); phthalocyanine complexes bearing peripheral insert ignore into journalissuearticles values(E);-4-insert ignore into journalissuearticles values(insert ignore into journalissuearticles values(2-hydroxynaphthalen-1-yl);diazenyl); units have been synthesized. Novel phthalonitrile derivative required for the preparation of phthalocyanine complexes was prepared by coupling 4-aminophthalonitrile and 2-naphthol. The structures of these new compounds were characterized by using elemental analyses, proton nuclear magnetic resonance, fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, fluorescence spectroscopy and mass spectrometry. In the UV-Vis spectra a broad absorption band appears for phthalocyanine complexes at around 450–500 nm resulting from azo-group introduced onto the phthalocyanine ring. The photophysical properties of metal-free and zincinsert ignore into journalissuearticles values(II); phthalocyanines were studied in tetrahydrofuran.
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