Novel coumarin-based fluorescent probe for selective detection of Cu(II)

Spectrochim Acta A Mol Biomol Spectrosc. 2016 Jan 5:152:18-22. doi: 10.1016/j.saa.2015.07.029. Epub 2015 Jul 7.

Abstract

We report an efficient and convenient method for preparing nitro-3-carboxamide coumarin derivatives, proposed as novel fluorescent chemosensor, through microwave irradiation. This compound can be used as fluorescent probe for Cu(2+) with selectivity over other metal ions in aqueous solution. The fluorescence of 6-nitro-N-[2-(dimethylamino)ethyl]-2-oxo-2H-chromene-3-carboxamide(3) is the highest in the presence of Cu(2+), with stronger excitation at λ=320nm than for the other cations tested.

Keywords: Cation recognition; Coumarin derivatives; Fluorescent chemosensor.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cations, Divalent / analysis
  • Copper / analysis*
  • Coumarins / chemistry*
  • Fluorescence
  • Fluorescent Dyes / chemical synthesis
  • Fluorescent Dyes / chemistry*
  • Models, Molecular
  • Spectrometry, Fluorescence

Substances

  • Cations, Divalent
  • Coumarins
  • Fluorescent Dyes
  • Copper
  • coumarin