A new chemosensor that signals Hg(II), Cu(II) and Zn(II) at different emission wavelengths: selectivity toward Hg(II) in acetonitrile

B. Nisar Ahamed; I. Ravikumar; Pradyut Ghosh

doi:10.1039/B9NJ00204A

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New Journal of Chemistry

Issue 9, 2009

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A new chemosensor that signals Hg(II), Cu(II) and Zn(II) at different emission wavelengths: selectivity toward Hg(II) in acetonitrile

B. Nisar Ahamed , I. Ravikumar and Pradyut Ghosh

New J. Chem., 2009, 33, 1825-1828

DOI: 10.1039/B9NJ00204A
Received 20 May 2009, Accepted 30 Jun 2009
First published on the web 24 Jul 2009

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Abstract
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Compounds
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A new tripodal fluoroionophore bearing furan and quinoline moieties, 2, senses Hg²⁺, Cu²⁺ and Zn²⁺ in acetonitrile by displaying enhanced fluorescence at distinct wavelengths. Chemosensor 2 also shows selectivity toward Hg²⁺ and senses Hg²⁺ even in the presence of acid in the media. When quinoline is replaced with a non-coordinating signaling unit like an anthryl moiety, the fluoroionophore fails to sense Hg²⁺ selectively.

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Syntheses, characterization data of 1–3 along with copies of ¹H-NMR, ¹³C-NMR and HRMS(ESI) spectra. Fluorescence data of 2 and 3 in presence of different inputs
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New Journal of Chemistry

A new chemosensor that signals Hg(II), Cu(II) and Zn(II) at different emission wavelengths: selectivity toward Hg(II) in acetonitrile

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