A pyrene-based fluorescent sensor for Zn2+ ions: a molecular 'butterfly'

Chem Commun (Camb). 2011 Aug 21;47(31):8796-8. doi: 10.1039/c1cc13286e. Epub 2011 Jul 7.

Abstract

A simple pyrene-based triazole receptor has been synthesised and shown to self-assemble in the presence of ZnCl(2) in an exclusively 2:1 ratio, whereas a mixture of 2:1 and 1:1 ratios are observed for other Zn(2+) salts. The pyrene units are syn in orientation; this is supported by a strong excimer signal observed at 410 nm in the presence of ZnCl(2) in acetonitrile. DFT calculations and 2D NMR support the proposed structure.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acetonitriles / chemistry
  • Chlorides / chemistry*
  • Fluorescent Dyes / chemistry*
  • Ions / chemistry
  • Pyrenes / chemical synthesis
  • Pyrenes / chemistry*
  • Spectrometry, Fluorescence
  • Triazoles / chemistry
  • Zinc Compounds / chemistry*

Substances

  • Acetonitriles
  • Chlorides
  • Fluorescent Dyes
  • Ions
  • Pyrenes
  • Triazoles
  • Zinc Compounds
  • zinc chloride
  • pyrene
  • acetonitrile