A ratiometric fluorescent probe for fluoride ions with a tridentate receptor of boronic acid and imidazolium

Eun Jin Jun, Zhaochao Xu, Minji Lee, Juyoung Yoon

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32 Scopus citations

Abstract

A new ratiometric fluorescent probe for fluoride ions was developed which complexed fluoride by a tridentate receptor of boronic acid and imidazolium. In the current study, a tridentate receptor 1 with one ortho boronic acid and two imidazolium groups was designed. The boron center can co-operate with imidazolium to bind F-. The formation of B-F complex stabilizes the interaction between fluoride and imidazolium which induces a ratiometric fluorescence response. With the addition of F-, a strongly increased fluorescent emission centered at 370 nm appears at the expense of the fluorescent emission centered at 445 nm.

Original languageEnglish
Pages (from-to)2755-2758
Number of pages4
JournalTetrahedron Letters
Volume54
Issue number22
DOIs
StatePublished - 29 May 2013

Keywords

  • Boronic acid
  • Fluorescent probe
  • Fluoride sensing
  • Imidazolium
  • Ratiometric sensor

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