Calix[4]arene based selective fluorescent chemosensor for organic acid recognition

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: calixarene fluorescence chemosensor select ive identification organic acid
• 年，卷（期）: 2008,（3）
• 页码范围: 348-352
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11458-008-0048-6

摘要

A novel calix[4]arene,based fluorescent chemosensor bearing a 2,aminopyridine moiety and a naphthalenic fluorophore was synthesized The chemical structure of the product was elucidated by FT,IR, MS,FAB, NMR and elemental analyses. Then, the properties and identification mechanism of the synthesized chemosensor were investigated. The results show that the chemosensor exhibits selective fluorescent quenching in the presence of aromatic organic 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.