Ratiometric Fluorescent Chemosensor for Silver Ion at Physiological pH

Bis-pyrene derivative 1, bearing two pyrene and pyridine groups, was synthesized as a ratiometric fluorescent chemosensor for Ag+ in aqueous solution. Fluorescent chemosensor 1 displayed a selective ratiometric change with Ag+, which was attributed to the excimer−monomer emissions of pyrenes. A mech...

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Veröffentlicht in:Inorganic chemistry 2011-03, Vol.50 (6), p.2240-2245
Hauptverfasser: Wang, Fang, Nandhakumar, Raju, Moon, Jong Hun, Kim, Kwan Mook, Lee, Jin Yong, Yoon, Juyoung
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Sprache:eng
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Zusammenfassung:Bis-pyrene derivative 1, bearing two pyrene and pyridine groups, was synthesized as a ratiometric fluorescent chemosensor for Ag+ in aqueous solution. Fluorescent chemosensor 1 displayed a selective ratiometric change with Ag+, which was attributed to the excimer−monomer emissions of pyrenes. A mechanism for the binding mode was proposed based on fluorescence changes, NMR experiments, and theoretical calculations.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic1018967