A bipyridine-based "naked-eye" fluorimetric Cu2+ chemosensor

Anna Reynal, Juan Etxebarria, Natalia Nieto, Sílvia Serres, Emilio Palomares, Anton Vidal-Ferran

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)


    A series of six 2,2′-bipyridine-3,3′-diols with different substituents have been synthesized and characterized. The designed ligands show fluorescence in the visible part of the spectra, but only the luminescence of the less sterically hindered molecules is quenched in the presence of Cu 2+ ions. Selectivity and sensitivity of the chemosensors have been tested by absorption and luminescence spectroscopy in aqueous solutions, with a dynamic working range of 0.7-30 μM and a limit of detection of 0.04 ppm (mg L-1).

    Original languageEnglish
    Pages (from-to)1360-1365
    Number of pages6
    JournalEuropean Journal of Inorganic Chemistry
    Issue number9
    Publication statusPublished - 19 Mar 2010


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