meso-四-(2-噻吩基)铜卟啉-环糊精超分子体系的光谱学研究  

Study on the supramolecular system of Cu-meso-tetrakis(2-thienyl) porphyrin with cyclodextrins by spectroscopy

作　　者：李小香[1] 王君文[1] 郭玉晶[1] 孔令宏[1] 潘景浩[1] 

机构地区：[1]山西大学化学化工学院,太原030006

出　　处：《分析试验室》2006年第10期19-23,共5页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(20375024);山西省自然科学基金(20041015)项目资助

摘　　要：以紫外可见分光光度法和荧光光谱法研究了非水溶性meso-四-(2-噻吩基)铜卟啉(简称Cu-TTP)与四种环糊精α-CD、β-CD、γ-CD、TM-β-CD相互作用形成的超分子体系,结果表明Cu-TTP与TM-β-CD形成了1∶2的包结物,而与其它三种环糊精主要形成1∶1的包结物。在α-CD、β-CD、γ-CD三种母体环糊精中,α-CD与Cu-TTP的包结常数最大;β-CD与其衍生物TM-β-CD相比,TM-β-CD与Cu-TTP的包结常数较大。本文对四种环糊精和Cu-TTP的包结机理作了初步探讨。为铜卟啉和环糊精的相互作用及其超分子体系的研究提供了基础。The supramolecular systems of Cu- meso- tetrakis- （2- thienyl） porphyrin （Cu - TIP） with α- CD, β - CD, γ - CD and TM - β - CD have been studied by Spectroscopy. The stoichiometries of supramolecular systems of Cu - TIP with four CDs have been determined by double reciprocal method. The results show that Cu - TIP can form an 1 ： 2 inclusion complex with TM - β - CD, but form 1 ： 1 inclusion complexes with α - CD, β - CD and γ - CD respectively. The inclusion ability of α - CD with Cu - TTP is the strongest among the three native CDs. Compared to the native β - CD, the inclusion ability of modified β - CD with Cu - TIP are stronger. These indicate that the hydrophobic effect plays an important role in the inclusion procedure except for the capacity matching.

关 键 词：meso-四-(2-噻吩基)铜卟啉 环糊精 超分子体系 包结比 包结常数 

分 类 号：O657.3[理学—分析化学]