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New Journal of Chemistry

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Letter

New J. Chem., 2009, 33, 1825 - 1828, DOI: 10.1039/b9nj00204a

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

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.

Graphical abstract image for this article (ID: b9nj00204a)