采用紫外-可见分光仪研究了酞菁铜(Cupc)、酞菁锰(Mnpc)、酞菁铁(Fepc)与β-环糊精(β-CD)的组装作用。运用摩尔比率法、等摩尔系列法确定了它们的组装比;运用双倒数法确定了不同温度下的组装稳定常数;采用饱和溶液法和固相法制得了Cupc-β-CD、Mnpc-β-CD、Fepc-β-CD组装体;对组装体进行了UV、SEM分析。结果表明在稀溶液中Cupc、Mnpc、Fepc与β-CD的组装比近似为1∶2;热力学数据分析知该组装过程能自发进行,组装过程的作用力以范德华力和偶极-偶极作用力为主;组装体与金属酞菁单体相比,有序性增加,溶解性提高,光催化能力及生物识别能力有所改善,这些性能的改善有利于合成高效的抗癌光敏剂。
The assembly behavior of copper phthalocyanine(Cupc),manganese phthalocyanine(Mnpc),iron phthalocyanine(Fepc) and β-cyclodextrin(β-CD) has been investigated by UV-visible spectrometer.The assembly ratio of them was determined with adopting molar ratio method and equimolar series method;the assembly stability constants at different temperatures have been defined by using the method of double reciprocal method;The solid complex of Cupc-β-CD,Mnpc-β-CD and Fepc-β-CD have been synthesized through the saturated solution method.The results show that the assembly ratio of Cupc,Mnpc and Fepc with β-CD is about equal to 1∶2 and the thermodynamic data indicate that the assembly process can occurs spontaneously based on the van der Waals forces and dipole-dipole interaction.The results of solid complex of UV and SEM show that the solubility,the order and the photocatalytic ability were increased compared with metal phthalocyanines which may become a potential medicine for antitumor uses.
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