2,2-Dipicolylamine (DPA) based receptors detect Zn2+ with high fidelity. A fluorescent sensor with thiocarbamate-linked DPA turns it into a highly selective module for Ag+ with up to ∼7-fold enhancement of fluorescence. The sensor exhibits a double ratiometric behavior. It also displays an interesting [Ag+] dependent aggregation induced emission.
J. Hatai and S. Bandyopadhyay, Chem. Commun., 2014, 50, 64 DOI: 10.1039/C3CC46285D
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