Highly sensitive and selective chemosensor for Hg2+ based on the rhodamine fluorophore

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330
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334

초록

A novel tren-based tripodal chemosensor 1 bearing a rhodamine and two tosyl groups was synthesized and its sensing behavior toward metal ions was investigated by UV/vis and fluorescence spectroscopies. Addition of a Hg2+ ion to a CH3CN solution of 1 gave a visual color change as well as significantly enhanced fluorescence, while other ions including Pb2+, Zn2+, Cu2+, Ca2+, Ba2+, Cd2+, Co2+, Mg2+, Ag+, Cs+, Li+, and Na+ induced no or much smaller color/spectral changes, which constituted a Hg2+-selective fluorescent chemosensor (OFF-ON).

키워드

ON FLUORESCENT SENSOR; HG(II); CHEMODOSIMETER; RECOGNITION; INDICATORS; GENERATION; RECEPTORS; BINDING; DESIGN; PROBE
제목
Highly sensitive and selective chemosensor for Hg2+ based on the rhodamine fluorophore
저자
Lee, Min Hee; Wu, Jia-Sheng; Lee, Jeong Won; Jung, Jong Hwa; Kim, Jong Seung
DOI
10.1021/ol0708931
발행일
2007-06-21
유형
Article
저널명
Organic Letters
권
9
호
13
페이지
2501 ~ 2504