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
Year2012
Month1
Day1
Volume Number41
Issue Number6
PublisherRoyal Society of Chemistry
Pages1801 - 1807
ISSN1477-9226
eISSN1477-9234
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesChemistry; Chemistry, Inorganic & Nuclear; CHEMISTRY, INORGANIC & NUCLEAR

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