title: A Novel Quinazolinone Derivative as Fluorescence Quenching Off-On Sensor for High Selectivity of Fe(3+).
abstract: A novel quinazolinone compound containing quinazoline-fused moiety has been synthesized as fluorescence Off-On sensor QQ. The probe exhibited highly selective and sensitive recognition toward trivalent ferric ion (Fe(3+)) over other metal ions in HEPES buffer solution (10 mM, pH = 7.0, DMF-H2O, 9:1, v/v). The significant quenching in the fluorescence spectral could be served as a selective fluorescence Off-On sensor. The titration study indicated the formation of 1:1 complex between QQ and Fe(3+).
authors.affiliation: Institute of Food and Light-chemical Engineering, Nanjing, Jiangsu, China.
authors.forename: Ailin
authors.initials: A
authors.lastname: Yuan
authors.affiliation: Institute of Food and Light-chemical Engineering, Nanjing, Jiangsu, China.
authors.forename: Chunling
authors.initials: C
authors.lastname: Zheng
authors.affiliation: Institute of Food and Light-chemical Engineering, Nanjing, Jiangsu, China.
authors.forename: Zhengyu
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Institute of Food and Light-chemical Engineering, Nanjing, Jiangsu, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Yang
authors.affiliation: Institute of Food and Light-chemical Engineering, Nanjing, Jiangsu, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.affiliation: Institute of Food and Light-chemical Engineering, Nanjing, Jiangsu, China. wanghaibo@njut.edu.cn.
authors.forename: Haibo
authors.initials: H
authors.lastname: Wang
mesh_terms: D005290:Ferric Compounds / Q000737:chemistry*; D052999:Quinazolinones / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D052999:Quinazolinones
keywords: Fe3+; Fluorescent probe; Off-On; Quinazolinone