有机化学 ›› 2021, Vol. 41 ›› Issue (3): 1161-1167.DOI: 10.6023/cjoc202010007 上一篇    下一篇

研究论文

一种基于香豆素骨架的荧光化学传感器于水溶液中实现对Al3+和焦磷酸根(PPi)的连续识别

孟宪娇a, 赵晋忠a, 张永坡a, 李志春b, 袁长春b,*(), 马文兵b,*()   

  1. a 山西农业大学基础部 山西晋中 030801
    b 中北大学化学工程与技术学院 太原 030051
  • 收稿日期:2020-10-06 修回日期:2020-10-28 发布日期:2020-11-12
  • 通讯作者: 袁长春, 马文兵
  • 基金资助:
    山西省基础应用研究(201801D221087); 山西农业大学科技创新(2020BQ18); 山西省优秀博士来晋工作奖励(SXYBKY2019046); 山西省高等学校创新(2020L0140)

A Fluorescent Chemosensor Based on Coumarin for Squential Recognition of Al3+ and Pyrophosphate (PPi) in Aqueous Solution

Xianjiao Menga, Jinzhong Zhaoa, Yongpo Zhanga, Zhichun Lib, Changchun Yuanb,*(), Wenbing Mab,*()   

  1. a Basic Sciences Depart, Shanxi Agricultural University, Jinzhong, Shanxi 030801
    b School of Chemical Engineering and Technology, North University of China, Taiyuan 030051
  • Received:2020-10-06 Revised:2020-10-28 Published:2020-11-12
  • Contact: Changchun Yuan, Wenbing Ma
  • About author:
    * Corresponding authors. E-mail: ;
  • Supported by:
    Applied Basic Research Programs of Shanxi Province(201801D221087); Science and Technology Innovation Project of Shanxi Agricultural University(2020BQ18); Shanxi Excellent Doctor Grant Award(SXYBKY2019046); Science and Technology Innovation Project of Colleges and Universities(2020L0140)

合成了一种新型的荧光化学传感器(E)-N'-(3-((双(吡啶-2-亚甲基)氨基)甲基)-2-羟基-5-甲基亚苄基)-7-(二乙氨基)-2-氧代-2H-色烯-3-甲酰肼(1), 并通过1H NMR、13C NMR和ESI-MS对其结构进行表征, 利用紫外/荧光分光光度法研究了传感器1的传感性能. 结果表明: 传感器1于水中对Al3+表现出明显的荧光增强响应, 而配合物1-Al3+对PPi表现出明显的荧光淬灭响应. 传感器1对Al3+和焦磷酸根(PPi)的检测限分别为0.26和0.1 μmol/L, 配位比均为1∶1. 配位机理通过荧光滴定、核磁滴定和高分辨质谱进行了证实, 另外传感器 1的有效测试pH范围是2~10, 且循环响应测试可达4次.

关键词: 香豆素, 荧光化学传感器, Al3+, PPi, 连续识别

A novel fluorescent chemosensor (E)-N'-(3-((bis(pyridin-2-ylmethyl)amino)methyl)-2-hydroxy-5-methylbenzyl- idene)-7-(diethylamino)-2-oxo-2H-chromene-3-carbohydrazide (1) has been synthesized and showed an obviously “off-on-off” fluorescence response toward Al 3+ and pyrophosphate (PPi) in aqueous solution. The detection limits of sensor 1 were 0.26 μmol/L to Al 3+ and 0.1 μmol/L to PPi, and the binding stoichiometry was 1∶1. In addition, the binding mechanism was further confirmed by fluorescence titration, nuclear magnetic titration and ESI-MS. The effective determination pH range for Al 3+ and PPi was from 2 to 10, and the cycle response test could reach 4 times.

Key words: coumarin, fluorescent chemosensor, Al3+, PPi, sequential recognition