A fluoride-selective PCT chemosensor based on formation of a static pyrene excimer

Kuk Kim Sung, Han Bok Ju, Richard A. Bartsch, Yong Lee Jin, Seung Kim Jong

Research output: Contribution to journalArticlepeer-review

312 Citations (Scopus)

Abstract

(Chemical Equation Presented) Calixarene-based fluorescent chemosensor 1 with two fluorogenic pyrene units conjugated to amide groups as guest recognition sites is synthesized. Complexation of F- by 1 causes a red shift of its absorption band to 400 nm (Δλ = 54 nm) and a blue shift of the excimer emission to 470 nm (Δλ = 12 nm) together with enhanced fluorescence intensity. The blue-shifted excimer emission is attributed to a pyrene dimer formed in the ground state, a so-called static excimer.

Original languageEnglish
Pages (from-to)4839-4842
Number of pages4
JournalOrganic Letters
Volume7
Issue number22
DOIs
Publication statusPublished - 2005 Oct 27
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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