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A new selective fluorescence chemosensor for Cu(II) in water

✍ Scribed by Marta Beltramello; Maddalena Gatos; Fabrizio Mancin; Paolo Tecilla; Umberto Tonellato

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
175 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new chemosensor for the Cu(II) ion has been realized by connecting via an amido bond an anthracenyl residue to the all cis 2,4,6-triamino-1,3,5-trihydroxycyclohexane ligand (TACI). This sensor is able to detect micromolar concentrations of Cu(II) ions in water at pH 7 without interference with many other divalent transition metal ions.

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The Cu(I)-catalyzed azide-alkyne cycloaddition reaction (CuAAC) has been used to synthesize an anthracene-based fluorescent compound that undergoes strong fluorescence quenching in the presence of Cu(II). Fluorescence studies indicate that the compound forms a 1:1 complex and can be used to quantita