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

Jihee Cho, Tuhin Pradhan, Jong Seung Kim, Sanghee Kim

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Pyrene-appended calix[2]triazole[2]arene capable of bimodal sensing has been synthesized. Upon addition of Zn2+ (or Cd2+), 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 Fe3+) 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.

Original languageEnglish
Pages (from-to)4058-4061
Number of pages4
JournalOrganic Letters
Issue number16
Publication statusPublished - 2013 Aug 16

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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