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New 7-hydroxycoumarin-based fluorescent chemosensors for Zn(II) and Cd(II)

Title
New 7-hydroxycoumarin-based fluorescent chemosensors for Zn(II) and Cd(II)
Authors
Swamy K.M.K.Kim M.J.Jeon H.R.Jung J.Y.Yoon J.
Ewha Authors
윤주영K.M.K.Swamy
SCOPUS Author ID
윤주영scopus
Issue Date
2010
Journal Title
Bulletin of the Korean Chemical Society
ISSN
0253-2964JCR Link
Citation
vol. 31, no. 12, pp. 3611 - 3616
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
Five new 4- or 8-substituted-7-hydroxycoumarin derivatives (1-5) were synthesized as fluorescent sensors for metal ions. Fluorescent changes and selectivity for metal ions were compared based on the introduction of different ligands and/or testing with different substitution positions of 7-hydroxycoumarin in aqueous solution. Especially, probes 2, 3 and 5 displayed large fluorescence enhancements with Zn 2+ and Cd 2+. Probes 2 and 3 showed moderate selectivity for Zn 2+ over Cd 2+. On the other hand, probe 4 showed large fluorescence quenching effects upon the addition of Ag + and Hg 2+.
DOI
10.5012/bkcs.2010.31.12.3611
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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