高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (3): 480.doi: 10.7503/cjcu20150835

• 有机化学 • 上一篇    下一篇

吲哚-3-醛-邻硝基苯基半卡巴腙的阴离子识别

林海1, 李亚巍2, 林华宽2()   

  1. 1. 南开大学教育部功能高分子材料重点实验室, 天津 300071
    2. 南开大学化学学院, 天津 300071
  • 收稿日期:2015-10-30 出版日期:2016-03-10 发布日期:2016-01-30
  • 基金资助:
    国家自然科学基金(批准号: 20671052)资助

Anion Recognition of Indole-3-Aldehyde-o-Nitrophenylsemicarbazone

LIN Hai1, LI Yawei2, LIN Huakuan2,*()   

  1. 1. Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin 300071, China
    2. College of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2015-10-30 Online:2016-03-10 Published:2016-01-30
  • Contact: LIN Huakuan E-mail:hklin@nankai.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No;20671052)

摘要:

利用吲哚-3-醛和邻硝基苯基半卡巴肼设计合成了新型含内氢键的阴离子识别受体吲哚-3-醛-邻硝基苯基半卡巴腙. 利用核磁共振波谱、 质谱和元素分析等手段对该受体进行了表征, 利用荧光光谱滴定和核磁共振波谱滴定研究了该受体对AcO-, F-, H2PO4-, Cl-, Br-, I-, HSO4-等阴离子的识别性能. 结果表明, 该受体与AcO-, F-, H2PO4-, Cl-, Br-, I-, HSO4-的结合常数和结合比分别是6.98, 1∶2; 6.85, 1∶2; 5.40, 1∶2; 13.51, 1∶2; 6.34, 1∶1; 5.40, 1∶1; 2.88, 1∶1. 该受体由于具有内氢键, 与具有适当体积、 碱度的Cl-很匹配, 对Cl- 具有很强的结合能力和很高的选择性.

关键词: 吲哚-3-醛-邻硝基苯基半卡巴腙, 荧光, 阴离子识别, 氯离子

Abstract:

A novel anion recognition receptor with inner hydrogen band, indole-3-aldehyde-o-nitrophenylse-micarbazone, was designed and synthesized via indole-3-aldehyde and o-nitrophenylsemicarbazide. The receptor was characterized by 1H NMR, ESI-MS and elemental analysis. The anion recognition properties of this receptor with AcO-, F-, H2PO4-, Cl-, Br-, I-, HSO4- were investigated with fluorescence and 1H NMR spectrometry, respectively. The association constants and association ratio of the receptor with AcO-, F-, H2PO4-, Cl-, Br-, I-, HSO4- are 6.98, 1∶2; 6.85, 1∶2; 5.40, 1∶2; 13.51, 1∶2; 6.34, 1∶1; 5.40, 1∶1; 2.88, 1∶1, respectively. Because the receptor with inner hydrogen band has special structure and is well matching with Cl- having appropriate bulk and basicity, the results of the fluorescence titration and 1H NMR titration indicate the receptor has very strong bind capability and very high selectivity for Cl-.

Key words: Indole-3-aldehyde-o-nitrophenylsemicarbazone, Fluorescence, Anion recognition, Cl- anion

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