title: A novel colorimetric and fluorescent anion chemosensor based on the flavone quasi-crown ether-metal complex.
abstract: The metal-ligand complex 1 ([Mg (L)] (2+)) (or 2 ([Ca (L)]( 2+))) was demonstrated to selectively bind HSO(4)(-) (or H(2)PO(4)(-)) over other anions by using UV-vis absorption and fluorescence spectroscopy. The studied complex exhibits the remarkable color change and fluorescence quenching upon introducing HSO(4)(-) (or H(2)PO(4)(-)) anion in acetonitrile. Both the mechanism and structure of the secondary complex of complex 1 with anion were proposed on the basis of theoretical computation.
authors.affiliation: Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, China.
authors.forename: Li-Li
authors.initials: LL
authors.lastname: Zhou
authors.forename: Hao
authors.initials: H
authors.lastname: Sun
authors.forename: Hua-Ping
authors.initials: HP
authors.lastname: Li
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Xiao-Hong
authors.initials: XH
authors.lastname: Zhang
authors.forename: Shi-Kang
authors.initials: SK
authors.lastname: Wu
authors.forename: Shuit-Tong
authors.initials: ST
authors.lastname: Lee