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本文报道我们合成的几种锌酞菁衍生物在胶束体系中,在电子给体EDTA的存在下,光敏化还原甲基紫精(MV~(2+))的研究。结果表明,锌酞菁及其衍生物在阳离子表面活性剂的胶束体系中,其敏化效果比在中性或阴离子表面活性剂的胶束体系中更为有效。结构不同的锌酞菁衍生物的敏化效果亦有显著的差异,其中锌酞菁磺酰丁胺敏化效果最好,锌酞菁羧酸次之。用它们作敏化剂时,MV~(2+)形成的量子产率一般高达0.4—0.7,比没有取代基的锌酞菁的敏化效果高。
In this paper, we reported the photosensitized reduction of methyl viologen (MV ~ (2+)) in micellar system with several zinc phthalocyanine derivatives synthesized in the presence of electron donor EDTA. The results show that zinc phthalocyanine and its derivatives in the cationic surfactant micellar system, the sensitization effect than neutral or anionic surfactant micelle system more effective. The sensitization effects of zinc phthalocyanine derivatives with different structures were also significantly different. Among them, zinc phthalocyanine sulfonamide had the best sensitization effect and zinc phthalocyanine carboxylic acid followed. When they are used as sensitizers, the quantum yield of MV ~ (2+) formation is generally as high as 0.4-0.7, which is higher than the sensitization effect of zinc phthalocyanine without substituents.