Triazolium-promoted highly selective fluorescence "turn-on" detection of fluoride ions

Jihee Cho, Illan Kim, Jong Hun Moon, Hardev Singh, Hyo Sung Jung, Jong Seung Kim, Jin Yong Lee, Sanghee Kim

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Through copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, new pyrene-appended triazole- and triazolium-based fluorescent probes have been synthesized and their binding capabilities for anion recognition were investigated. The probes showed different fluorescence behavior in response to fluoride (F-) ions. The probe bearing a triazolium moiety, displayed a high selectivity towards F- ions via C-HF- hydrogen bonding interaction and de-protonation that was accompanied by fluorescence "turn-on". Further, the experimental observations were well supported by 1H NMR spectroscopy and density functional theory (DFT) calculations.

Original languageEnglish
Pages (from-to)248-254
Number of pages7
JournalDyes and Pigments
Publication statusPublished - 2016 Sept 1


  • 1,2,3-triazolium
  • DFT calculation
  • Fluorescent probe
  • Fluoride detection
  • Pyrene

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology


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