Bimodal calix[2]triazole[2]arene fluorescent ionophore

Org Lett. 2013 Aug 16;15(16):4058-61. doi: 10.1021/ol401469z. Epub 2013 Aug 5.

Abstract

Pyrene-appended calix[2]triazole[2]arene capable of bimodal sensing has been synthesized. Upon addition of Zn(2+) (or Cd(2+)), it selectively exhibits an enhanced monomeric emission (~13-20-fold) over other metal ions. On the other hand, it displays excellent selectivity for Fe(2+) over other metal ions (even over Fe(3+)) from the angle of excimeric emissions (10-fold enhancement). Density Functional Theory (DFT) based theoretical calculations distinguished the bimodal activity of the probe and supported the experimental observations.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calixarenes / chemical synthesis*
  • Calixarenes / chemistry*
  • Crystallography, X-Ray
  • Ionophores / chemistry*
  • Magnetic Resonance Spectroscopy
  • Metals / chemistry*
  • Molecular Structure
  • Quantum Theory
  • Triazoles / chemical synthesis*
  • Triazoles / chemistry*

Substances

  • Ionophores
  • Metals
  • Triazoles
  • calix(2)triazole(2)arene
  • Calixarenes