Highly selective fluorescent signaling for Al3+ in bispyrenyl polyether

Jung Kim Hyun, Ho Kim Su, Tuan Quang Duong, Hyung Kim Ja, Il Hwan Suh, Seung Kim Jong

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A series of bispyrenyl-polyether have been synthesized and investigated as a fluorescent chemosensor for metal ions. The results showed that bispyrenyl-polyether system is selective towards Al3+ ion over other ions tested. In free ligand, excited at 343 nm, it displays a strong excimer emission at around 475 nm with a weak monomer emission at 375 nm. A ratiometry of monomer (375 nm) increase and excimer (475 nm) quenching was shown only when Al3+ ion is bound to ligand, because two facing pyrene groups form a less efficient overlap of π?π stacking compared with that of free ligand.

Original languageEnglish
Pages (from-to)811-815
Number of pages5
JournalBulletin of the Korean Chemical Society
Issue number5
Publication statusPublished - 2007 May 20
Externally publishedYes


  • Aluminium ion
  • Excimer
  • Fluorescence
  • Pyrene

ASJC Scopus subject areas

  • Chemistry(all)


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