title: Both visual and fluorescent sensor for Zn2+ based on quinoline platform.
abstract: A fluorescent Zn(2+) sensor 2-(hydroxymethyl)-4-methyl-6-((quinolinyl-8-imino)methyl)phenol (HMQP) based on the 8-aminoquinoline platform has been synthesized. This sensor displays high selectivity, sensitive fluorescence enhancement, strong binding ability, and ratiometric response to Zn(2+) in Tris-HCl (50 mM, pH 7.54), THF-H(2)O (9:1, v/v). And an obvious color change between HMQP and Zn(2+)-MQP(-) can be visually observed by the naked eye. The composition of the complex Zn(2+)-MQP(-) has been found to be 1:2 based on the fluorescence/absorption titration and further confirmed by X-ray crystallography.
authors.affiliation: Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zhou
authors.forename: Bingran
authors.initials: B
authors.lastname: Yu
authors.forename: Yanling
authors.initials: Y
authors.lastname: Guo
authors.forename: Xiaoliang
authors.initials: X
authors.lastname: Tang
authors.forename: Huihui
authors.initials: H
authors.lastname: Zhang
authors.forename: Weisheng
authors.initials: W
authors.lastname: Liu
mesh_terms: D000634:Aminoquinolines / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: D000634:Aminoquinolines; D005456:Fluorescent Dyes; D009942:Organometallic Compounds; D015032:Zinc; C080436:8-aminoquinoline