Abstract
A new coumarin based chemosensor has been developed for selective fluorescent recognition of Cu2+ in MeOH/H2O (4:1, v/v at pH = 7.2 aqueous solution) medium with 1:1 binding stoichiometry. The in-situ prepared Cu2+ complex displays high selectivity towards CN− via Cu2+ displacement approach with detection limit in the micro molar range. Moreover, in presence of Cu2+, the receptor exhibits reversible emission change with EDTA and thus offers an interesting property of molecular ‘IMPLICATION’ logic gate with Cu2+ and EDTA as chemical inputs.
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University of Kalyani, India, DST-FIST (SR/FST/ESI-008/2008) and DST-PURSE, New Delhi, India are gratefully acknowledged for the financial support and infrastructural facilities during this work.
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Mukherjee, S., Talukder, S. A Coumarin-Based Luminescent Chemosensor for Recognition of Cu2+ and its In-Situ Complex for CN− Sensing via Cu2+ Displacement Approach. J Fluoresc 27, 1567–1572 (2017). https://doi.org/10.1007/s10895-016-1974-1
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DOI: https://doi.org/10.1007/s10895-016-1974-1