Highly selective fluorescent signaling for Al3+ in bispyrenyl polyether

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

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Abstract

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
Volume28
Issue number5
Publication statusPublished - 2007 May 20
Externally publishedYes

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Keywords

  • Aluminium ion
  • Excimer
  • Fluorescence
  • Pyrene

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Hyun, J. K., Su, H. K., Duong, T. Q., Ja, H. K., Suh, I. H., & Kim, J. S. (2007). Highly selective fluorescent signaling for Al3+ in bispyrenyl polyether. Bulletin of the Korean Chemical Society, 28(5), 811-815.