title: Ratiometically Fluorescent Sensing of Zn(II) Based on Dual-Emission of 2-Pyridylthiazole Derivatives.
abstract: A new fluorophore, 4-methyl-2-(2-pyridyl)-5-(2-thiophenyl)thiazole (2-PTT), was reported as a ratiometically fluorescent sensor of zinc(II) based on dual-emission with selectivity and sensitivity. Two emission bands at 440 and 497 nm were observed before and after addition of zinc(II), respectively. Job's plot disclosed the 1:1 stoichiometry between 2-PTT and zinc(II). The binding constant was evaluated as 2.09 × 10(5) M(-1) based on fluorescence titration experiment.
authors.affiliation: Department of Chemistry, Yanbian University, Yanji City, Jilin Province, 133002, China.
authors.forename: Ming-Hua
authors.initials: MH
authors.lastname: Zheng
authors.affiliation: Department of Chemistry, Yanbian University, Yanji City, Jilin Province, 133002, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Hu
authors.affiliation: Department of Chemistry, Yanbian University, Yanji City, Jilin Province, 133002, China.
authors.forename: Ming-Yang
authors.initials: MY
authors.lastname: Yang
authors.affiliation: Department of Chemistry, Yanbian University, Yanji City, Jilin Province, 133002, China. jyjin-chem@ybu.edu.cn.
authors.forename: Jing-Yi
authors.initials: JY
authors.lastname: Jin
keywords: 2-Pyridylthiazole; Fluorescence; Ratiometic sensor; Zinc ion