席夫碱配体稀土配合物荧光感应识别  

Fluorescence Sensing Recognition of Rare Earth Complexes with Schiff Base Ligand

作　　者：刘颖 LIU Ying(College of Chemistry and Material Engineering,Wenzhou University,Wenzhou Zhejiang 325035,China)

机构地区：[1]温州大学化学与材料工程学院,浙江温州325035

出　　处：《辽宁化工》2024年第7期1100-1103,1107,共5页Liaoning Chemical Industry

摘　　要：稀土元素有着长的荧光寿命、大的斯托克斯位移和尖锐的特征发射等优势,但紫外吸光系数却很低。席夫碱配体的引入可以更好地吸收能量敏化稀土离子发射,其中天线效应为重要的传感机理。此外稀土配合物作为荧光探针检测各种小分子或离子时的机理主要有5种,介绍了这5种传感机理,用以探讨荧光猝灭或增强的原因。Rare earth elements have the advantages of long fluorescence lifetime,large Stokes shift and sharp characteristic emission,but the ultraviolet absorption coefficient is very low.The introduction of Schiff base ligand can better absorb energy-sensitized rare earth ion emission,in which antenna effect is an important sensing mechanism.In addition,there are four main mechanisms for the detection of various small molecules or ions by rare earth complexes as fluorescent probes.In this paper,these five sensing mechanisms were introduced to explore the reasons for fluorescence quenching or enhancement.

关 键 词：稀土元素 稀土配合物 传感机理 荧光探针 

分 类 号：TQ133.3[化学工程—无机化工]