基于1,8-萘酰亚胺的Ag^(+)荧光探针的合成及应用  

Synthesis and application of 1,8-naphthalimide-based fluorescent probe for detection of Ag^(+)

作　　者：周五 潘远江 曹语 吴爱斌[1,2,3] 舒文明 余维初 ZHOU Wu;PAN Yuan;jang;CAO Yu;WU Ai-bin;SHU Wen-ming;YU Wei-chu(School of Chemistry and Environmental Engineering,Yangtze University,Jingzhou 434023,China;Unconventional Oil and Gas Collaborative Innovation Center,Yangtze University,Jingzhou 434023,China;Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields,Jingzhou 434023,China)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]长江大学非常规油气协同创新中心,湖北北荆州434023 [3]油气田清洁生产与污染物控制湖北省工程研究中心,湖北434023

出　　处：《化学研究与应用》2023年第12期2908-2914,共7页Chemical Research and Application

基　　金：国家自然科学基金项目(52274029)资助。

摘　　要：通过N-丁基-4,5-二氨基-1,8-萘酰亚胺与2-噻吩甲醛缩合,构建了一种基于分子内电荷转移(ICT)的荧光探针NAPH-1(6-氨基-2-丁基-7-((噻吩-2-基亚甲基)氨基)-1H-苯并[de]异喹啉-1,3(2H-二酮)),其结构经^(1)H NMR、^(13)C NMR、HRMS和元素分析确证。探究了该探针对Ag^(+)选择性、荧光滴定、淬灭常数、检测限等性能。研究结果表明,NAPH-1对Ag^(+)呈现出荧光淬灭效应,猝灭常数为2.96×10^(5)L·mol^(-1)。值得关注的是,NAPH-1表现出对Ag^(+)较好的选择性和响应性,检测限为0.32μmol·L^(-1)。水样中测定结果表明,NAPH-1可以作为一种潜在的Ag^(+)检测工具。A novel fluorescent probes NAPH-1(6-amino-2-butyl-7-((thiophen-2-ylmethylene)amino)-1H-benzo[de ] isoquinoline-1,3(2H)-dione)based on intramolecular charge transfer(ICT)were constructed by the condensation of N-butyl-4,5-diamino-1,8-naphthalimide with 2-thiophenecarboxaldehyde.Their structures were confimed by ^(1)H NMR,^(13)C NMR,HRMS and elemental analy-sis.The selectivity,fluorescence titration,quenching constant and detection limit of the probe for Ag were studied.The results showed that NAPH-1 could present fluorescence quenching effect for Ag^(+) with quenching constants of 2.96×10^(5)L·mol^(-1).It was noteworthy that NAPH-1 exhibited the better selectivity and responsiveness to Ag^(+) with a detection limit of 0.32μmol·L^(-1).The determination of Ag^(+) in water samples showed that the probe NAPH-1 could be used as a potential detection tool in practical appli-cations.

关 键 词：荧光探针 萘酰亚胺 Ag^(+) 合成 应用 

分 类 号：O657.3[理学—分析化学]