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Fluorescent Hg 2+ Sensors: Synthesis and Evaluation of a Tren‐Based Starburst Molecule Containing Fluorinated 1,2,4‐Oxadiazoles
Author(s) -
Pibiri Ivana,
Palumbo Piccionello Antonio,
Calabrese Alessandro,
Buscemi Silvestre,
Vivoicolò,
Pace Andrea
Publication year - 2010
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201000763
Subject(s) - chemistry , fluorescence , molecule , metal ions in aqueous solution , fluorescence spectroscopy , nuclear magnetic resonance spectroscopy , photochemistry , metal , spectroscopy , proton nmr , stereochemistry , organic chemistry , physics , quantum mechanics
Abstract 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, 1 H NMR and 19 F NMR spectroscopy. Selective sensing for Hg 2+ ions through a PET‐based mechanism was evidenced, suggesting application as fluorescent sensor for Hg 2+ of the off‐on type.