title: A simple ratiometric and colorimetric chemosensor for the selective detection of fluoride in DMSO buffered solution.
abstract: A derivative of squaramide (cyclobuta[b]quinoxaline-1, 2(3H, 8H)-dione) has been synthesized for the ratiometric and colorimetric sensing of F(-) in aqueous solution in competitive fashion. With F(-), probe 1 showed a highly selective naked-eye detectable color change along with a characteristic UV-Vis absorbance over other tested ions, which probably originates from the deprotonation occurred between 1 and F(-), as proved by the (1)H NMR titration experiments and DFT calculations.
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
authors: Hu
authors: H
authors: Niu
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China. Electronic address: qhshu121@bit.edu.cn.
authors: Qinghai
authors: Q
authors: Shu
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
authors: Shaohua
authors: S
authors: Jin
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
authors: Bingjun
authors: B
authors: Li
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
authors: Jiaping
authors: J
authors: Zhu
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
authors: Lijie
authors: L
authors: Li
authors: School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
authors: Shusen
authors: S
authors: Chen
keywords: Chemosensor; DFT calculation; Fluoride detection; Ratiometric