Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (4): 20-24.

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Calix [ 4 ] arene-ßased Selective Fluorescent Chemosensor for Organic Acid

Liu Jun-min  wang Run-he  Hang Yi-ping  Liao Shi-jun   

  1. School of Chemical Science , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-04-03 Online:2007-04-25 Published:2007-04-25
  • Contact: 刘军民(1976-)，女，博士，讲师，主要从事有机合成和分析研究. E-mail:liujm@scut. edu.cn
  • About author:刘军民(1976-)，女，博士，讲师，主要从事有机合成和分析研究.
  • Supported by:

    国家自然科学基金资助项目( 20502008) ;广东省自然科学基金资助项目(05300152)

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Abstract:

A novel calix [ 4 ] arene-based f1uorescent chemosensor bearing 2-aminopyridine moiety and naphthalenic fluorphore was synthesized , and the chemical structure of the product was identified by FT-IR , MS-FAB , NMR and elemental analyses. Then , the properties and identification mechanism of the synthesized chemosensor were investi-gated.The results show that the chemosensor exhitits selective f1uorescent quenching in the presence of aromatic or-ganic acid in acetonitrile solution , and that the binding ability of the chemosensor with organic acid is in the order of p-cyanic-benzyl acid > p-chloric-benzyl acid > p-methoxyl-benzyl acid > benzyl acid.

Key words: calixarene, f1uorescence, chemical sensor, selective identification, organic acid