高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (9): 2169.

• 研究论文 • 上一篇    下一篇

基于喹啉和三唑环的开链冠醚对金属离子的选择传感

杨东瑞,张志君,张衡益,刘育   

  1. 南开大学化学系, 元素有机化学国家重点实验室, 天津 300071
  • 收稿日期:2011-04-01 修回日期:2011-06-21 出版日期:2011-09-10 发布日期:2011-08-11
  • 通讯作者: 刘育 E-mail:yuliu@nankai.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20932004,  20972077)资助.

Selective Binding and Fluorescent Behavior of Metal Ions by Podand Possessing Quinoline and Triazole Groups

YANG Dong-Rui, ZHANG Zhi-Jun, ZHANG Heng-Yi, LIU Yu*   

  1. State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2011-04-01 Revised:2011-06-21 Online:2011-09-10 Published:2011-08-11
  • Contact: LIU Yu E-mail:yuliu@nankai.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20932004,  20972077)资助.

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被引次数

15

摘要： 本文通过Click化学反应合成了一种含喹啉基和三唑基的开链冠醚, 考察和比较了主体化合物对镉等金属离子的荧光传感和选择性键合行为, 并通过荧光和核磁等手段研究了溶剂对其荧光传感的影响.

关键词: 荧光传感器; , 镉离子, 锌离子; , 开链冠醚

Abstract: Fluorescent chemosensors based on supramolecular interactions are receiving increasing attention due to their potential in analytical chemistry and environmental monitoring. Podands possessing 8-hydroxyquinolino and triazole groups were synthesized via “click chemistry” reaction. Their spectrometric behaviors and the binding ability toward metal ions were investigated by fluorescence, UV-vis spectrum and NMR spectroscopy. With good water solubility, chemosensors 1 and 2 exhibited a distinct switch-on fluorescence response to Cd2+ and Zn2+ over other metal ions, according to which the chemosensory function are realized. Significantly, spectrophotometric studies also demonstrated that the proportion of methanol in aqueous solution greatly influent the selectivity and fluorescent emission ability of host compound. Additionally, 1H NMR analysis revealed that the 8-hydroxyquinolino and the triazole group, as well as the ether chains, were involved in the bonding interactions with the ions.

Key words: Fluorescent chemosensor; Cd2+; Zn2+; , Podand

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