Calix[4]arene-based, Hg2+-induced intramolecular fluorescence resonance energy transfer chemosensor

Amel Ben Othman, Won Lee Jeong, Jia Sheng Wu, Jong Seung Kim, Rym Abidi, Pierre Thuéry, Jean Marc Strub, Alain Van Dorsselaer, Jacques Vicens

Research output: Contribution to journalArticlepeer-review

171 Citations (Scopus)


(Figure Presented) A novel calix[4]arene-based chemosensor 1 based on Hg2+-induced fluorescence resonance energy transfer (FRET) was synthesized, and its sensing behavior toward metal ions was investigated by UV/vis and fluorescence spectroscopies. Addition of Hg2+ to a CH 3CN solution of 1 gave a significantly enhanced fluorescence at ∼575 nm via energy transfer (FRET-ON) from the pyrenyl excimer to a ring-opened rhodamine moiety. In contrast, addition of Al3+ induced a distinct increase of pyrenyl excimer emission (∼475 nm), while no obvious FRET-ON phenomenon was observed. Different binding behaviors of 1 toward Hg 2+ and Al3+ were also proposed for the interesting observation.

Original languageEnglish
Pages (from-to)7634-7640
Number of pages7
JournalJournal of Organic Chemistry
Issue number20
Publication statusPublished - 2007 Sept 28

ASJC Scopus subject areas

  • Organic Chemistry


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