Journal
CHEMICAL COMMUNICATIONS
Volume -, Issue 10, Pages 1234-1236Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b819538b
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Funding
- NRL program [R04-2007-000-2007-0]
- SRC program of KOSEF/MEST [R11-2005-008-02003-0]
- WCU [R31-2008-000-10010-0]
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Three structurally similar compounds, 1-3, bearing a fluorescence chromophore to which are appended morpholine, thiomorpholine and methylpiperazine substituents, display opposite fluorescence responses to pH changes, in contrast to that observed for fluorescein; 1 and 2 have extremely high binding selectivity towards Ag+ ions and show completely different fluorescent and colorimetric changes upon addition of Ag+, and the differences are proposed to be associated with different binding modes of 1 and 2 to this metal ion.
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