Niu Hu, Shu Qinghai, Jin Shaohua, Li Bingjun, Zhu Jiaping, Li Lijie, Chen Shusen
School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2016 Jan 15;153:194-8. doi: 10.1016/j.saa.2015.08.030. Epub 2015 Aug 15.
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.
已合成了一种方酰胺衍生物（环丁烷并[b]喹喔啉-1,2(3H,8H)-二酮），用于以竞争方式对水溶液中的F⁻进行比率和比色传感。与F⁻结合时，探针1相对于其他测试离子显示出高度选择性的肉眼可检测颜色变化以及特征性紫外可见吸收，这可能源于1与F⁻之间发生的去质子化，¹H NMR滴定实验和密度泛函理论（DFT）计算证明了这一点。
