A highly efficient and selective turn-on fluorescent sensor for Cu2+ ion based on calix[4]arene bearing four iminoquinoline subunits on the upper rim

Guang-Ke Li; Zhen-Xiang Xu; Chuan-Feng Chen; Zhi-Tang Huang

doi:10.1039/B800258D

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A highly efficient and selective turn-on fluorescent sensor for Cu²⁺ ion based on calix[4]arene bearing four iminoquinoline subunits on the upper rim†

Guang-Ke Li,^ab Zhen-Xiang Xu,^ab Chuan-Feng Chen*^a and Zhi-Tang Huang*^a

Author affiliations

* Corresponding authors

^a Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
E-mail: cchen@iccas.ac.cn, huangzt@public.bta.net.cn
Fax: 8610-62554449

^b Graduate School, Chinese Academy of Sciences, Beijing 100049, China

Abstract

A new fluorescent chemosensor based on calix[4]arene bearing four iminoquinoline subunits on the upper rim was conveniently synthesized, which showed a remarkable enhanced fluorescent intensity in the presence of Cu²⁺ ion and a high selectivity toward Cu²⁺ ion over a wide range of tested metal ions in acetonitrile.

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Supplementary files

Synthesis of compounds 1, 2, 5 and 6; absorption and fluorescence spectra of 1 and 2 in the presence of Cu ²⁺ or Zn ²⁺; ESI mass spectra of 1-Cu ²⁺ and 1-Zn ²⁺ PDF (1358K)

Article information

DOI: https://doi.org/10.1039/B800258D
Article type: Communication
Submitted: 08 Jan 2008
Accepted: 24 Jan 2008
First published: 14 Feb 2008

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Chem. Commun., 2008, 1774-1776

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A highly efficient and selective turn-on fluorescent sensor for Cu²⁺ ion based on calix[4]arene bearing four iminoquinoline subunits on the upper rim

G. Li, Z. Xu, C. Chen and Z. Huang, Chem. Commun., 2008, 1774 DOI: 10.1039/B800258D

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