Highly selective and turn-on fluorescence probe with red shift emission for naked-eye detecting Al^(3+)and Ga^(3+)based on metal-organic framework

作     者：Linhui Wu Shuli Yao Hui Xu Tengfei Zheng Suijun Liu Jinglin Chen Na Li Herui Wen Linhui Wu;Shuli Yao;Hui Xu;Tengfei Zheng;Suijun Liu;Jinglin Chen;Na Li;Herui Wen

作者机构：School of Chemistry and Chemical EngineeringJiangxi University of Science and TechnologyGanzhou 341000China School of Materials Science and EngineeringTianjin Key Laboratory of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin 300350China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2022年第33卷第1期

页      面：541-546页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：supported from the National Natural Science Foundation of China(Nos.22061019,21761012 and 21861018) the Natural Science Foundation of Jiangxi Province(Nos.20192BAB203001,20202ACBL213001,20192ACBL20013 and 20182BCB22010) the Youth Jinggang Scholars Program in Jiangxi Province(No.QNJG2019053) the Two Thousand Talents Program in Jiangxi Province(No.jxsq2019201068) 

主　　题：Metal-organic frameworks Fluorescence probe Naked-eye detection Turn-on effect Red shift emission Al^(3+)and Ga^(3+) 

摘      要：A novel ZnII-based metal-organic framework with the formula of{[Zn_(2)(BBIP)_(2)(NDC)_(2)]·H_(2)O}n(JXUST-5)derived from 3,5-bis(benzimidazol-1-yl)pyridine(BBIP)and 1,4-naphthalenedicarboxylic acid(H_(2)NDC)has been *** adjacent Zn^(II)ions are linked through two BBIP ligands to form a[Zn_(2)(BBIP)_(2)]secondary building unit(SBU).The neighbouring SBUs are further connected by NDC^(2-)withμ2-η^(1):η^(1)andμ2-η^(1):η^(1):η^(1)bridging modes to form a two-dimensional(2D)*** analysis shows that JXUST-5 could be simplified as an uninodal fes topology with a point symbol of{4.8^(2)}.Furthermore,the 2D framework net could be extended through C-H···πinteraction to form the three-dimensional supramolecular *** experiments suggest that JXUST-5 could selectively and sensitively recognize Al^(3+)and Ga^(3+)through fluorescence enhancement effect along with a relatively large red *** detection limits for Al^(3+)and Ga^(3+)are 0.17 and 0.69 ppm,***,the sensing process for both Al^(3+)and Ga^(3+)could be directly observed with naked eyes under 365 nm UV ***,JXUST-5 could be recycled at least five times as a fluorescent sensor toward Al^(3+)and Ga^(3+),which is the second example of turn-on MOF based fluorescent sensor toward Ga^(3+).