Chemical Research in Chinese Universities ›› 2009, Vol. 25 ›› Issue (5): 620-623.

• Articles • Previous Articles     Next Articles

A Quinoline Derivated Chemosensor for Cu2+ Recognition

FAN Cai-ling1*, DAI Xing2, YANG Wu-min3, WANG Xing-feng2 and YANG Yun-xu2*   

  1. 1. College of Science, Henan Agriculture University, Zhengzhou 450002, P. R. China;
    2. Department of Chemistry, University of Science and Technology of Beijing, Beijing 100083, P. R. China;
    3. Department of Chemistry, Foreign Language School of Yixin, Wuxi 210005, P. R. China
  • Received:2009-04-28 Revised:2009-07-15 Online:2009-09-25 Published:2009-12-07
  • Contact: FAN Cai-ling, E-mail: ndfcl@sina.com; YANG Yun-xu, E-mail: yxyang63@yahoo.com.cn
  • Supported by:

    Supported by the Natural Science Foundation of Beijing City, China(No.2082016).

Abstract:

A quinoline derivative N-(2-hydroxyl-naphthylmethyl)-N-(quinol-8-yl)amine(2) was synthesized and characterized, which can selectively recognize Cu2+ over other metal ions such as Zn2+, Cd2+, Sn2+, Pb2+, Hg2+, Ni2+, Mg2+, Cr3+, Mn2+, Sr2+, K+, Ca2+, Na+, Ba2+ in acetonitrile/water(volume ratio 99:1). Cu2+ induced a new absorption peak at 464 nm in the absorption spectrum(ε=4.66×102 L·mol–1·cm–1) and quenched the fluorescence emission of quinoline derivative 2. The binding of quinoline derivative 2 to Cu2+ was in 1:1 model and stable constant was estimated to be 2.48×105 L·mol–1.

Key words: Chemosensor; Copper ion; Colorimetric; Fluorescent