用于水中苦味酸检测的咪唑衍生物的合成及其应用

刘婷婷; 李玉成; 沈洋; 杨家祥; 郜洪文

doi:10.3788/fgxb20194003.0279

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用于水中苦味酸检测的咪唑衍生物的合成及其应用

材料合成及性能 | 更新时间：2020-08-12

- 用于水中苦味酸检测的咪唑衍生物的合成及其应用
- Synthesis and Application of Imidazole Derivatives Used for The Determination of Picric Acid in Water
- 发光学报 2019年40卷第3期页码：279-288
- 作者机构：
  
  1. 同济大学环境科学与工程学院上海,200092
  2. 安徽大学资源与环境工程学院,安徽合肥,230601
  3. 安徽大学化学与化工学院,安徽合肥,230601
- 作者简介：
- 基金信息：
  
  国家自然科学基金（21577098，51673001）;上海市自然科学基金（17ZR1410500）资助项目
- DOI：10.3788/fgxb20194003.0279
  中图分类号： O657.3;O626.23
- 纸质出版日期：2019-3-5，
  
  网络出版日期：2018-11-8，
  
  收稿日期：2018-9-18，
  
  修回日期：2018-10-17，
扫描看全文
刘婷婷, 李玉成, 沈洋等. 用于水中苦味酸检测的咪唑衍生物的合成及其应用[J]. 发光学报, 2019,40(3): 279-288

LIU Ting-ting, LI Yu-cheng, SHEN Yang etc. Synthesis and Application of Imidazole Derivatives Used for The Determination of Picric Acid in Water[J]. Chinese Journal of Luminescence, 2019,40(3): 279-288
刘婷婷, 李玉成, 沈洋等. 用于水中苦味酸检测的咪唑衍生物的合成及其应用[J]. 发光学报, 2019,40(3): 279-288 DOI： 10.3788/fgxb20194003.0279.

LIU Ting-ting, LI Yu-cheng, SHEN Yang etc. Synthesis and Application of Imidazole Derivatives Used for The Determination of Picric Acid in Water[J]. Chinese Journal of Luminescence, 2019,40(3): 279-288 DOI： 10.3788/fgxb20194003.0279.

摘要

通过Debus-Radziszewski、Suzuki-Miyaura和Knoevenagel缩合反应，设计合成了一种新型的咪唑衍生物

，并使用傅里叶变换红外光谱和核磁共振氢谱对合成化合物进行了结构表征。不同极性溶剂中光物理性质和密度泛函理论计算结果表明该系列化合物具有典型的分子内电荷转移（Intramolecular charge transfer，ICT）效应；紫外-可见吸收和荧光发射光谱证实它表现出聚集诱导猝灭（Aggregation-caused quenching，ACQ）性质。进一步的光物理性质测试表明化合物

在THF/H

O混合溶液中可实现对2，4，6-三硝基苯酚（苦味酸，picric acid，PA）的检测，检测限为3.710

-6

mol/L。

Abstract

A novel imidazole derivative

with electron-donating ability was designed and synthesized

via

the reactions of Debus-Radziszewski

Suzuki-Miyaura and Knoevenagel and characterized by FT-IR

H NMR. The photophysical properties in different polar solvents and density functional theory calculation results demonstrated that

exhibited typical intramolecular charge transfer(ICT) effect. The UV-Vis spectra and fluorescence spectra showed that

exhibited aggregation-caused quenching(ACQ) properties. The test results show that

can achieve the detection for PA(picric acid) in THF/H

O solution

and the limit of detection for PA is 3.710

-6

mol/L.

关键词

咪唑衍生物荧光探针苦味酸溶致变色效应

Keywords

imidazole derivativefluorescence chemosensorpicric acid (PA)solvatochromism effect

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