On/off fluorescence switch of a calix[4]arene by metal ion exchange

Su Ho Kim, Jung Kyu Choi, Sung Kuk Kim, Wonbo Sim, Jong Seung Kim

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A new calix[4]arene-based fluorescence chemosensor displaying a strong excimer emission was prepared. When a Pb2+ ion is bound to the two amide oxygen atoms linked to the fluorophores, the ligand exhibits a marked quenched excimer emission due to its geometrical change during the complexation. By the addition of Ca2+ ion into the 1·Pb2+, the excimer emission band was revived, by which an interesting on/off switch process is proposed.

Original languageEnglish
Pages (from-to)3737-3741
Number of pages5
JournalTetrahedron Letters
Volume47
Issue number22
DOIs
Publication statusPublished - 2006 May 29
Externally publishedYes

Fingerprint

Ion Exchange
Metal ions
Ion exchange
Fluorescence
Metals
Switches
Ions
Fluorophores
Complexation
Amides
Oxygen
Ligands
Atoms
calix(4)arene

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Drug Discovery

Cite this

On/off fluorescence switch of a calix[4]arene by metal ion exchange. / Kim, Su Ho; Choi, Jung Kyu; Kim, Sung Kuk; Sim, Wonbo; Kim, Jong Seung.

In: Tetrahedron Letters, Vol. 47, No. 22, 29.05.2006, p. 3737-3741.

Research output: Contribution to journalArticle

Kim, Su Ho ; Choi, Jung Kyu ; Kim, Sung Kuk ; Sim, Wonbo ; Kim, Jong Seung. / On/off fluorescence switch of a calix[4]arene by metal ion exchange. In: Tetrahedron Letters. 2006 ; Vol. 47, No. 22. pp. 3737-3741.
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