A colorimetric and fluorescent chemodosimeter responding to Cu2+ with high selectivity and sensitivity

A colorimetric and fluorescent chemodosimeter responding to Cu2+ with high selectivity and... 4-(dicyanomethylene)-2-methyl-6-[p-(dimethylamino)-styryl]-4H-pyran (DCMS) as a colorimetric fluorescent chemodosimeter for Cu2+ was synthesized. DCMS can selectively recognize Cu2+ without disturbance by other metal ions in acetonitrile. Furthermore, the DCMS solution showed a distinguishable color change visible to the naked eye after addition of Cu2+. DCMS for Cu2+ sensing in acetonitrile had a remarkably low detection limit of 0.2 μM, which is 1 % of the toxicity level in drinking water defined by the US Environment Protection Agency (USEPA). Interestingly, the results suggest that the Cu2+ sensing mechanism may be involved in a redox reaction between Cu2+ and DCMS. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A colorimetric and fluorescent chemodosimeter responding to Cu2+ with high selectivity and sensitivity

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Publisher
Springer Journals
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2034-1
Publisher site
See Article on Publisher Site

Abstract

4-(dicyanomethylene)-2-methyl-6-[p-(dimethylamino)-styryl]-4H-pyran (DCMS) as a colorimetric fluorescent chemodosimeter for Cu2+ was synthesized. DCMS can selectively recognize Cu2+ without disturbance by other metal ions in acetonitrile. Furthermore, the DCMS solution showed a distinguishable color change visible to the naked eye after addition of Cu2+. DCMS for Cu2+ sensing in acetonitrile had a remarkably low detection limit of 0.2 μM, which is 1 % of the toxicity level in drinking water defined by the US Environment Protection Agency (USEPA). Interestingly, the results suggest that the Cu2+ sensing mechanism may be involved in a redox reaction between Cu2+ and DCMS.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Apr 19, 2015

References

  • Solvent-dependent selective fluorescence assay of aluminum and gallium ions using julolidine-based probe
    Noh, JY; Kim, S; Hwang, IH; Lee, GY; Kang, J; Kim, SH
  • Dicyanomethylene-4H-pyran chromophores for OLED emitters, logic gates and optical chemosensors
    Guo, Z; Zhu, W; Tian, H

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