Hg2+ sensing in aqueous solutions: an intramolecular charge transfer emission quenching fluorescent chemosensors

Sin Man Cheung, Wing Hong CHAN*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

Compounds 4a and 4b, comprising an anthracene moiety as the fluorophore and a pair of dithiocarbamate functionalities as ligating groups, were designed as fluorescent chemosensors for Hg(II). In aqueous solvent systems, upon excitation, in addition to the normal emission bands of locally excited (LE) state of anthracene, both compounds show a prominent pH-independent intramolecular charge transfer (ICT) emissive band, which can be modulated by Hg2+ binding. The systems can be exploited to develop a fluorescent sensitive probe for Hg2+.

Original languageEnglish
Pages (from-to)8379-8383
Number of pages5
JournalTetrahedron
Volume62
Issue number35
DOIs
Publication statusPublished - 28 Aug 2006

Scopus Subject Areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

User-Defined Keywords

  • Anthracene
  • Chemosensors
  • Dual fluorescence
  • Mercury probe

Fingerprint

Dive into the research topics of 'Hg<sup>2+</sup> sensing in aqueous solutions: an intramolecular charge transfer emission quenching fluorescent chemosensors'. Together they form a unique fingerprint.

Cite this