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四氮杂芳氧基取代酞菁金属配合物的UV-Vis吸收光谱研究
Study on UV-Vis Absorption Spectra of Tetra-Azo-Aromaticoxy Substituted Metallophthalocyanines
【摘要】 测定了6个系列18种四氮杂芳氧基取代酞菁金属配合物(R4PcM,R=4-吡啶氧基、8-喹啉氧基、2-甲基-8-喹啉氧基;取代位置分别为:α位及β位;M=Ni(Ⅱ),Cu(Ⅱ),Zn(Ⅱ))的UV-Vis吸收光谱。探讨了中心金属、取代基种类及取代位置、溶剂对酞菁金属配合物UV-Vis吸收光谱中Q带最大吸收波长(λmax)的影响,实验结果表明:标题配合物的Q带λmax在680 nm左右;与相同中心金属无取代酞菁金属配合物(669~671 nm)比较,标题配合物的Q带λmax都发生了不同程度的红移;当取代基在α位时其种类对标题配合物Q带λmax的影响较在β位时显著,且相同取代基及中心金属的α位取代配合物的Q带λmax较β位取代配合物的红移更为明显;中心金属、溶剂对标题配合物的Q带λmax影响不明显。
【Abstract】 UV-Vis absorption spectras of six series(18 kinds) of tetra-azo-aromaticoxy substituted metallophthalocyanines(R4PcM,R=4-pyridyloxy,8quinolinoxy,2-methyl-8-quinolinoxy;substitution position: α position and β position;M=Ni(Ⅱ),Cu(Ⅱ),Zn(Ⅱ)) were measured.The effects of central mentals,the kinds and the positions of substitution groups,and solvents on the metallophthalocyanines’ λmax in Q-band were discussed.Experimental data show: The λmax in Q-band of title complexes is about 680 nm.In contrast with substitution-free metallophthalocyanines(669-671 nm),the λmax in Q-band of the title complexes with the same central metal exhibits a different red-shift.The effect of substitution group’s kinds on λmax in Q-band of the title complexes is more obvious in α position than in β position,and with the same substitution group and central metal,λmax in Q-band of α position substituted complexes exhibits more obvious red-shift than β position substituted complexes.The effects of central metal and solvent on λmax in Q-band of the title complexes aren’t obvious.
【Key words】 Azo-aromaticoxy; Substituted metallophthalocyanine; UV-Vis absorption spectra;
- 【文献出处】 光谱学与光谱分析 ,Spectroscopy and Spectral Analysis , 编辑部邮箱 ,2006年11期
- 【分类号】O641.4
- 【被引频次】7
- 【下载频次】228