稀土金属-有机框架在同分异构体传感材料中的应用

基于稀土金属离子独特的电子结构,稀土金属-有机框架的光致发光具有发射峰尖锐、量子产率高和发光寿命长等特点,可应用于针对特定功能化学物种的光学传感材料。稀土金属离子高的配位数和丰富的配位模式,使得稀土金属-有机框架具有结构多样性和可调性,可与不同的化学物种在结构和能级两个方面相匹配,是其具有传感功能的基础。关于同分异构体的识别,尤其是针对同类同分异构体的快速识别,在化工和制药等领域均具有重要的价值。本文综述了稀土金属-有机框架针对具有特定功能同分异构体的传感性质,并讨论了其相关传感机制。

Applications of Rare Earth Metal-Organic Frameworks as Sensors for Isomer Detection

Based on the unique electronic structures of rare earth ions,the photoluminescence of rare earth metal-organic frameworks has the advantages of sharp emission peaks,high quantum yields and long lifetimes,which was studied as optical sensing materials for specific chemicals.Thanks to the high coordination numbers and abundant coordination modes of rare earth ions,rare earth metal-organic frameworks possess structural diversities and turnabilities,which can match well with various chemicals in both structures and energy levels and hence is the basis of their sensing functions.The recognition of isomers,especially for the fast detection of specific isomers,is of great value in chemical and pharmaceutical fields.In this review,the sensing properties of rare earth metal-organic frameworks for isomers with specific functions were summarized,and the related sensing mechanisms were discussed.