Abstract: Three kinds of phthalonitrile derivatives precursors are synthesized with 1,5-dihydroxyanthraquinone,4-nitrophthalonitrile,3,5-dimethylphenol and β-naphthol as main raw materials.The precursors are then catalyzed by DBU to form 9(10),16(17),23(24)-tris -2(3)-(1,5-dioxyanthraquinone) binuclear zinc phthalocyanine (D-CPc) and 9(10),16(17),23(24)-tris-2(3)-(1,5-dioxyanthraquinone) binuclear zinc phthalocyanine (β-CPc).Two compounds prepared are fully characterized by FT-IR,UV-Vis,1HNMR,elemental analysis,and cyclic voltammetry.It is shown that Q bands of both D-CPc and β-CPc undergo 11 nm and 10 nm of red shift,respectively.Both compounds exhibit obvious absorption in the range of 400-600 nm,while non-substituted phthalocyanine shows no-absorption in the range of 400-600 nm.They also show an excellent solubility in 0.1×10-5-1.0×10-5 mol·L-1 DMF solution.Cyclic voltammetry studies show that ELUMO values of D-CPc and β-CPc are -3.17 and -3.26 eV,respectively,and their EHOMO values are -5.16 and -5.10 eV,respectively.They can match with TiO2 energy level and redox electric pair energy level,meet band gap rules,and realize redox of dyes.
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