Design of Novel Binuclear Phthalocyanines formed by Dioxyphenyl Bridges: Synthesis and Investigation of Thermal and Antioxidant Properties |
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| Authors: | Prof. Dr. M. Salih Ağırtaş İlkay Gümüş Veysi Okumus Abdurrahman Dundar |
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| Affiliation: | 1. Department of Chemistry, Faculty of Science, Yüzüncü Y?l University, 65080 Van, Turkey;2. Department of Biology, Faculty of Arts and Science, Siirt University, 56100, Siirt, Turkey |
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| Abstract: | 4, 4′‐(1, 4‐Phenylenebis(oxy)diphthalonitrile was synthesized by reaction of hydroquinone with 4‐nitrophthalonitrile. Binuclear metallophthalocyanines 2–4 were obtained by the reaction between 4, 4′‐(1, 4‐phenylenebis(oxy)diphthalonitrile and 4‐(benzo [d] 1 , 3 dioxol‐5‐ylmethoxy)phthalonitrile in the presence of metal salts. These new compounds were characterized by using elemental analysis, FTIR, 1H‐NMR and UV/Vis spectroscopic data. Thermal properties of phthalocyanines 2‐4 were investigated by TG and DTA. In addition, antioxidant properties of compounds II , 3 and 4 were investigated. Their radical‐scavenging capacity and chelating effects was fully studied. The maximum 1, 1‐diphenyl‐2‐picrylhydrazyl radicals (DPPH) were obtained from compound 3 . Chelating effects on ferrous ions were 91.6 % at concentration of 100 mg L–1 with compound II . |
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| Keywords: | Phthalocyanines Antioxidants Thermal properties Synthesis Binuclear complexes |
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