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  • Title: A highly selective fluorescent chemosensor for Al(III) ion and fluorescent species formed in the solution.
    Author: Ding WH, Cao W, Zheng XJ, Fang DC, Wong WT, Jin LP.
    Journal: Inorg Chem; 2013 Jul 01; 52(13):7320-2. PubMed ID: 23786342.
    Abstract:
    A chemosensor for the Al(3+) ion, 1-[(3-hydroxypyridin-2-ylamino)methylene]naphthalen-2(1H)-one (H2L), based on inhibited excited-state intramolecular proton transfer was synthesized. The experimental and theoretical calculations at B3LYP+PCM/6-31G(d) revealed that Al(3+) and H2L form a 1:1 complex, [AlL(OH)(H2O)]2, in dimethyl sulfoxide that exhibits two remarkably enhanced fluorescent emissions at 523 and 553 nm. It is confirmed that H2L could be used to detect Al(3+) ions in cells by bioimaging.
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