有机化学 ›› 2017, Vol. 37 ›› Issue (3): 624-629.DOI: 10.6023/cjoc201611004 上一篇    下一篇

研究论文

降冰片烯荧光三唑化合物的合成及其金属离子识别

祝文斌, 吕小兰, 朱江华, 曹迁永   

  1. 南昌大学化学学院 鄱阳湖环境与资源利用教育部重点实验室 南昌 330031
  • 收稿日期:2016-11-02 修回日期:2016-12-12 发布日期:2016-12-21
  • 通讯作者: 曹迁永,E-mail:cqyong@ncu.edu.cn E-mail:cqyong@ncu.edu.cn
  • 基金资助:

    国家自然科学基金(No.21462027)资助项目.

Norbornene-Based Triazoles for Fluorescent Sensing of Metal Ions

Zhu Wenbin, Lü Xiaolan, Zhu Jianghua, Cao Qianyong   

  1. Department of Chemistry, Nanchang University, Nanchang 330031
  • Received:2016-11-02 Revised:2016-12-12 Published:2016-12-21
  • Contact: 10.6023/cjoc201611004 E-mail:cqyong@ncu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21462027).

通过点击反应合成了一种以降冰片烯为骨架含蒽荧光团环状双三唑化合物1及其非环对应物2,并研究了其对金属离子荧光识别能力.在CH3CN-H2O(V:V=90:10)溶液中,受体分子1仅对Hg2+有很好的荧光淬灭响应.有意思的是,非环受体2对Zn2+,Hg2+与Cu2+都有荧光识别响应,其中滴加Zn2+使受体2荧光增强,而滴加Hg2+与Cu2+则导致其荧光淬灭.同时对受体分子与金属离子的结合模式通过1H NMR滴定及密度泛函理论(DFT)计算进行了探讨.

关键词: 降冰片烯, 蒽, 三唑, 荧光, 金属离子识别

A new macrocyclic norbornene-based bis-triazole (1) containing anthracene fluorophore and its acyclic analog 2 have been designed and synthesized by "click reaction", and their fluorescence recognition abilities towards various metal ions have been investigated. In CH3CN-H2O (V:V=90:10) solution, cyclic receptor 1 shows excusive turn-off fluorescent sensing of Zn2+. However, acyclic receptor 2 exhibits fluorescence changes towards Zn2+, Hg2+ and Cu2+. Upon addition Zn2+, the fluorescence of 2 give a large enhancement, while the addition of Hg2+ and Cu2+ leads a fluorescence quenching effect. In addition, the binding mechanisms between receptors and metal ions have been discussed via 1H NMR titration and density functional theory (DFT) calculation technique.

Key words: norbornene, anthracene, triazole, fluorescence, metal ions recognition