A highly selective and sensitive BODIPY-based colourimetric and turn-on fluorescent sensor for Hg2+ ions
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AbstractA series of monostyryl boron dipyrromethenes appended with an NO4, NO2S2, N3O4, or N3O2S2-type ligand have been prepared and characterised. While the UV-Vis spectra of the former three compounds in CH3CN/H2O (2 : 3 v/v) do not respond towards a wide range of metal ions, the derivative with an N3O2S2-ligand exhibits a highly selective and sensitive spectral response towards Hg2+ 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 Hg2+ ions in this mixed aqueous medium.
All Author(s) ListJiang XJ, Wong CL, Lo PC, Ng DKP
Journal nameDalton Transactions
Volume Number41
Issue Number6
PublisherRoyal Society of Chemistry
Pages1801 - 1807
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesChemistry; Chemistry, Inorganic & Nuclear; CHEMISTRY, INORGANIC & NUCLEAR

Last updated on 2021-12-01 at 23:39