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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 1
BKCSDE 34(1)
January 20, 2013 

1,8-Naphthyridine Modified Naphthalimide Derivative: Ratiometric and Selective Sensor for Hg2+ in Organic Aqueous Solution
Yong Gang Shi, Yu Lian Duan, Jian Hua Chen, Xiang Hua Wu, Ying Zhou*, Jun Feng Zhang*
Fluorescent sensor, Naphthalimide, 1,8-Naphthyridine mercury, Ratiometric
A bottom-modified (4-position) naphthalimide derivative 1 with 1,8-naphthyridine as binding site has been designed and synthesized. Compound 1 is the first 1,8-naphthyridine-modified naphthalimide-based sensor that can detect Hg2+ selectively with respect to ratiometric fluorescent change and blue shift in organic aqueous solution. The Job’s plot and FAB mass indicate that 1 formed a 1:1 complex with Hg2+. A top-modified naphthalimide derivative 2 with 1,8-naphthyridin as binding site has also been synthesized for comparison.
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