4.7 Article

Novel mercury sensor based on water soluble styrylindolium dye

Journal

DYES AND PIGMENTS
Volume 96, Issue 2, Pages 423-429

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2012.09.010

Keywords

Styrylindolium; Dye; Sensor; Fluorescence; Mercury; Intramolecular charge transfer

Funding

  1. NNSFC [21272172, 20972111, 21074093, 21004044), NCET-09-0894]
  2. SRF for ROCS
  3. SEM
  4. NSFT [12JCZDJC21000]
  5. State Key Lab
  6. Elemental-Organic Chemistry at Nankai University [1103]

Ask authors/readers for more resources

A novel water soluble Hg2+-selective chemosensor using a styrylindolium dye as both colorimetric and fluorometric reporting group has been synthesized and characterized. The chemosensor exhibits a specific Hg2+ selectivity to discriminate between Hg2+ and chemically close ions by using a NO2S2 chelating unit as the ion binding site. Due to the Hg2+-induced intramolecular charge transfer, the chemosensor shows a visible colorimetric change from red to yellow, leading to potential production of both visual and fluorometric detection of Hg2+ cation both in water and in aqueous ethanol solutions. (C) 2012 Elsevier Ltd. All rights reserved.

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