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综述了近十余年来的一些β-双酮类、苯并咪唑类、苯甲酸类、吡啶类、大环类配体与三价铕(Eu3+)和铽(Tb3+)形成的配合物在液相体系中的荧光性能。其中,重点关注了衡量配合物的荧光性能的最重要的两个标准即量子产率和荧光寿命。文中也总结了在设计和合成优良配体时应该遵循的一些原则:如配体与稀土离子能级要匹配、将溶剂分子排斥出稀土离子配位,最大程度地消除光猝灭因素和无辐射去活化作用而改善光物理性能等,以期得到高的量子产率和长的荧光寿命的稀土配合物。
The complexes of some β-diketones, benzimidazoles, benzoic acids, pyridines, macrocyclic ligands with tervalent europium (Eu3 +) and terbium (Tb3 +) were reviewed in the past ten years Fluorescence performance in phase system. Among them, the focus is on the two most important criteria for measuring the fluorescence properties of complexes, namely, quantum yield and fluorescence lifetime. The paper also summarizes some principles that should be followed when designing and synthesizing good ligands. For example, if the ligand and rare earth ion energy level should be matched, the solvent molecules will be excluded from the rare earth ion coordination to eliminate the light quenching factor and the non-radiation Deactivation to improve the photophysical properties, etc., in order to obtain high quantum yield and long fluorescence lifetime of rare earth complexes.