Manipulation of fluorescent and colorimetric changes of fluorescein derivatives and applications for sensing silver ions

Three structurally similar compounds, , 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; and have extremely high binding selectiv...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2009-01 (10), p.1234-1236
Main Authors: Swamy, K M K, Kim, Ha Na, Soh, Jung Huyn, Kim, Youngmee, Kim, Sung-Jin, Yoon, Juyoung
Format: Article
Language:English
Subjects:
Cations
Colorimetry
Fluorescein - analysis
Fluorescein - chemistry
Hydrogen-Ion Concentration
Molecular Structure
Silver - analysis
Silver - chemistry
Spectrometry, Fluorescence
Titrimetry
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Summary:Three structurally similar compounds, , 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; and 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 and to this metal ion.
ISSN:1359-7345
1364-548X
DOI:10.1039/b819538b