Chem. J. Chinese Universities

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Colorimetric Chemosensing of Calixarene Derivative Possessing Bis(indolyl) Groups for Hg2+

LI Zhe, GUO Dong-Sheng, LI Hong-Xia, LIU Yu*   

  1. Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2008-09-27 Revised:1900-01-01 Online:2008-12-10 Published:2008-12-10
  • Contact: LIU Yu

Abstract: A calixarene derivative(2) possessing bis(indolyl) groups was synthesized in satisfied yield, and further its response to metal ions was investigated by the means of UV-Vis spectrometry. The results obtained show that host 2 displays a high sensitivity to Hg2+. The addition of Hg2+ made the absorption spectrum of host 2 appear a new band around ca. 500 nm, and caused obvious color change of solution from colorless to orange-yellow. Hence, the detection of Hg2+ can be easily found by naked eyes. Calixarene 2 may be used for the application as Hg2+-selective chemosensor, even in aqueous solution.

Key words: Calixarene, Hg2+, Chemosensing, Bis(indolyl)

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