Fluorescent Hg2+ Sensors: Synthesis and Evaluation of a Tren-Based Starburst Molecule Containing Fluorinated 1,2,4-Oxadiazoles

[摘要]：A new tren-based starburst molecule containing fluorinated 1,2,4-oxadiazoles as fluorophores has been synthesized and its sensing behavior toward several metal cations has been investigated by UV/Vis, fluorescence, H-1 NMR and F-19 NMR spectroscopy. Selective sensing for Hg2+ ions through a PETbased mechanism was evidenced, suggesting application as fluorescent sensor for Hg2+ of the off-on type.

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