title: An 2-(2'-aminophenyl)benzoxazole-based OFF-ON fluorescent chemosensor for Zn2+ in aqueous solution.
abstract: A water-soluble fluorescent sensor, 1, based on the "receptor-spacer-fluorophore" [2-(2'-aminophenyl)benzoxazole-amide-2-picolylamine] sensor platform, demonstrates the high sensitivity for Zn(2+) with a 25-fold fluorescence enhancement upon chelation to Zn(2+) and also exhibits high selectivity to Zn(2+) over other metal ions. X-ray crystal structure of Zn(2+) complex reveals that the amide oxygen (O2) cooperates with 2-picolylamine unit (N3, N4) as a receptor bind Zn(2+).
authors.affiliation: School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
authors.forename: Maliang
authors.initials: M
authors.lastname: Chen
authors.forename: Xin
authors.initials: X
authors.lastname: Lv
authors.forename: Yunlong
authors.initials: Y
authors.lastname: Liu
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhao
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.forename: Pi
authors.initials: P
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Guo
mesh_terms: D001583:Benzoxazoles / Q000737:chemistry*; D002413:Cations, Divalent / Q000737:chemistry; D018360:Crystallography, X-Ray; D005456:Fluorescent Dyes / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D012996:Solutions / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: C558548:2-(2'-aminophenyl)benzoxazole; D001583:Benzoxazoles; D002413:Cations, Divalent; D005456:Fluorescent Dyes; D012996:Solutions; D015032:Zinc