A colorimetric and βturn-onβ fluorescent
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He-yang Li; Shuang Gao; Zhen Xi
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Article
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2009
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Elsevier Science
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English
β 403 KB
Turn-on" fluorescence Zn(II) ion a b s t r a c t A coumarin Shiff-base derivative, 7-hydroxy-3-(2-hydroxybenzylideneamino)-2H-chromen-2-one (CSB), was obtained by simple two-step organic synthesis from cheap and commercially available starting materials. CSB has nearly no fluorescence in CH 3 CN sol