Synthesis of Highly Luminescent LnMOFs through Structural Regulation

作     者：余筱波 陈昭 马源婕 李玲 常文婷 李博 曾承辉 YU Xiao-Bo;CHEN Zhao;MA Yuan-Jie;LI Ling;CHANG Wen-Ting;LI Bo;ZENG Cheng-Hui

作者机构：College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang 330022China Jiangxi Yuean Superfine Met Co LtdGanzhouJiangxi 341000China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2022年第41卷第3期

页      面：270-276,I0015页

核心收录：

学科分类：07[理学] 070304[理学-物理化学(含∶化学物理)] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China (No. 51962008) Natural Science Foundation of Jiangxi Province (20202BABL203018) 

主　　题：highly luminescent LnMOFs structural regulation luminescence quantum yield 

摘      要：Two series of three dimensional(3D)lanthanide metal-organic frameworks(LnMOFs)of[Ln(tftpa)1.5(phen)(H_(2)O)]_(n)(Ln=Sm 1a,Eu 1b,Tb 1c,Dy 1d,H2tftpa=tetrafluoroterephthalic acid,phen=1,10-phenanthrolin)and[Ln(tftpa)1.5(bpy)(H_(2)O)]_(n)(Ln=Sm 2a,Eu 2b,Tb 2c,Dy 2d,bpy=2,2 -bipyridine)are obtained by structural regulation.Results reveal that the 3D LnMOFs show high water-and thermal-stability.Interestingly,through selecting the perfluorinated ligand,and using bpy as an auxiliary ligand to hold back the solvents near to the lanthanide ions,2b,and 2c show high luminescence quantum yield(QY)of 74.50%and 60.03%,respectively.In order to further improve the luminescence QY,the auxiliary ligand of phen with larger conjugation and more rigid structure is synthesized to replace bpy,and fortunately,higher luminescence QY of 80.73%(1b)and 75.17%(1c)are realized.