A dipyrenyl calixazacrown chemosensor for Mg2+

Abdelwaheb Hamdi, Sang Hoon Kim, Rym Abidi, Pierre Thuéry, Jong Seung Kim, Jacques Vicens

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


A new fluorogenic calix[4]tetraaza-crown-6 (4) bearing two pyrene amide groups has been prepared. It was shown to be selective for Mg2+. When Mg2+ is bound to 4, the pyrene monomer emission increased while the excimer emission declined in a ratiometric manner. It is shown by 1H NMR that this ratiometric change is due to the conformational changes of the pyrenes during the chelation of Mg2+ by the amide functions to form a 1:1 complex.

Original languageEnglish
Pages (from-to)2818-2823
Number of pages6
Issue number14
Publication statusPublished - 2009 Apr 4


  • Calixarenes
  • Complexation
  • Detection
  • Excimer
  • Fluorescence
  • Magnesium

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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