基于间苯二甲酰腙的荧光探针的合成及其接力识别Al3+和焦磷酸根  

A Isophthalic Dihydrazide-Based Fluorescent Probe for Relay Recognition of Al3+ and Pyrophosphate

作　　者：李方霁 边延江 陈志新 汤立军 钟克利 侯淑华 Li Fangji;Bian Yanjiang;Chen Zhixin;Tang Lijun;Zhong Keli;Hou Shuhua(College of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121013)

机构地区：[1]渤海大学化学化工学院

出　　处：《化学通报》2019年第8期743-748,共6页Chemistry

基　　金：国家自然科学基金项目(21476029,U1608222);辽宁特聘教授支持计划项目资助

摘　　要：设计合成了一种基于2-羟基-1-萘甲醛和间苯二甲酰肼的简单高效的荧光探针L,其结构通过1H NMR、13C NMR和HRMS进行表征。在乙醇-水(1∶1)的体系中,L能够高选择性识别铝离子,表现出明显的荧光增强,并具有较低的检测限(5.924×10^-6mol/L),二者结合比为1∶2。此外,原位生成的配合物L-2Al3+可接力识别焦磷酸根(PPi),具有良好的选择性和灵敏度,检测限可达4.756×10^-5mol/L。该荧光探针具有潜在的应用价值。A simple and efficient fluorescent probe L was synthesized by using 2-hydroxy-1-naphthaldehyde and isophthalic dihydrazide as raw materials. Its structure were characterized by 1H NMR,13C NMR and HRMS. Probe L displays an highly selective recognition and a lower detection limit( 5. 924 × 10^-6 mol/L) for Al^3+ over other tested metal ions,which has a significant fluorescence enhancement in the mixed ETOH and water( 1 ∶ 1) system. This probe L has a binding ratio of 1 ∶ 2. In addition,the L-2Al^3+showed highly selective sequential recognition of pyrophosphate ions( PPi) with good sensitivity. The detection limit of L-2Al^3+ to PPi could reach 4. 756×10^-5 mol/L.The fluorescent probe has potential application value.

关 键 词：2-羟基-1-萘甲醛 间苯二甲酰肼 Al3+ 焦磷酸根 

分 类 号：O657.3[理学—分析化学]