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杯芳烃作为继环糊精和冠醚之后的大环化合物,以其特有的结构特点和易化学修饰性而成为新一代人工受体的代表,其典型的超分子特性成为近年来研究的热点。在杯芳烃中引入羧基、吡啶、羰基等能与稀土离子配位的官能团,利用杯芳烃骨架苯环的π→π*吸收或所引入官能团的紫外吸收对稀土离子的能量传递,可使配合物表现出独特的发光性质。基于上述原因,杯芳烃稀土离子配合物发光性质的研究及应用备受人们的重视和青睐。本文从荧光传感器、分子开关、发光材料三个应用方面综述了近几年有关杯芳烃稀土离子配合物的研究工作。
Calixarenes, as macrocyclic compounds following cyclodextrins and crown ethers, have become the representatives of a new generation of artificial receptors with their unique structural features and chemical modification properties. Their typical supramolecular properties have become hot topics in recent years. The introduction of carboxyl, pyridine, carbonyl and other functional groups capable of coordinating with rare earth ions into calixarene can utilize the π → π * absorption of the aromatic ring of the calixarene skeleton or the absorption of ultraviolet light by the introduced functional group to the rare earth ions, Showing unique luminescent properties. Based on the above reasons, the research and application of the luminescent properties of calixarene rare earth ion complexes have received much attention and favor. In this paper, the recent researches on rare earth ion complexes of calixarenes were summarized in three applications of fluorescence sensors, molecular switches and luminescent materials.