A highly selective and sensitive BODIPY-based colourimetric and turn-on fluorescent sensor for Hg 2+ ions

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Xiong-Jie Jiang
  • Cheok-Lam Wong
  • Pui-Chi Lo
  • Dennis K. P. Ng

Detail(s)

Original languageEnglish
Pages (from-to)1801-1807
Journal / PublicationDalton Transactions
Volume41
Issue number6
Publication statusPublished - 14 Feb 2012
Externally publishedYes

Abstract

A series of monostyryl boron dipyrromethenes appended with an NO 4, NO 2S 2, N 3O 4, or N 3O 2S 2-type ligand have been prepared and characterised. While the UV-Vis spectra of the former three compounds in CH 3CN/H 2O (2:3 v/v) do not respond towards a wide range of metal ions, the derivative with an N 3O 2S 2-ligand exhibits a highly selective and sensitive spectral response towards Hg 2+ ions. The absorption band is blue-shifted by 40 nm due to inhibition of the intramolecular charge transfer process upon metal complexation. The fluorescence is also turned on giving a strong emission band at 572 nm. The colour changes can be easily detected by the naked eye. The results suggest that this compound serves as a promising colourimetric and fluorescent sensor for Hg 2+ ions in this mixed aqueous medium. © 2012 The Royal Society of Chemistry.

Citation Format(s)

A highly selective and sensitive BODIPY-based colourimetric and turn-on fluorescent sensor for Hg 2+ ions. / Jiang, Xiong-Jie; Wong, Cheok-Lam; Lo, Pui-Chi; Ng, Dennis K. P.

In: Dalton Transactions, Vol. 41, No. 6, 14.02.2012, p. 1801-1807.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review