高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (9): 1431.

• 论文 • 上一篇    下一篇

一种新型黄酮冠醚及其对碱金属和碱土金属离子的配位作用

李华平, 汪鹏飞, 吴世康   

  1. 中国科学院感光化学研究所, 北京, 100101
  • 收稿日期:1997-09-10 出版日期:1998-09-24 发布日期:1998-09-24
  • 通讯作者: 汪鹏飞
  • 作者简介:李华平,男,25岁,硕士研究生.
  • 基金资助:

    国家自然科学基金(批准号:29605004)资助课题.

A New Flavonecrown Ether and Its Complexation with Alkali and Alkaline Earth Metal Cations

LI Hua-Ping, WANG Peng-Fei, WU Shi-Kang   

  1. Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing, 100101
  • Received:1997-09-10 Online:1998-09-24 Published:1998-09-24

摘要: 介绍了一种新型黄酮冠醚(FC)的合成,并研究了这种冠醚与碱金属和碱土金属高氯酸盐发生配位作用时的吸收光谱和荧光光谱的变化,通过不同的处理方法求出了该冠醚与几种离子配位的稳定常数.

关键词: 黄酮冠醚, 配位作用, 化学敏感器

Abstract: Anew kind of flouroionophore flavonecrown ether(FC)[4'-(dimethylamino)-3,6-(tetraethylene)-flavone was synthesized and characterized. The photophysical changes upon complexation with alkali and alkaline earth metal cations can be described in terms of enchancement of the cation-induced intramolecular charge transfer in the flavone owing to the direct interaction between the bound cations and the carbonyl group of the flavone. The magnitude of the photophysical changes is controlled by the size of crown and charge density of the bound cations. Based on the determination of the stability constants, the selectivity of flavonecrown ether is different from the regular crown ether. The results obtained were discussed preliminarily.

Key words: Flavonecrown ether, Complexation, Chemosensor

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