基于简单氨基苯并二呋喃酮有机π共轭染料的高效比色氟阴离子化学传感器，颜色各异
Efficient Colorimetric Fluoride Anion Chemosensors With Varied Colors Based on Simple Aminobenzodifuranone Organic Π-Conjugated Dyes.
作者信息
Deng Zhi Feng, Li Rui, Geng Jie Ting, Zheng Meng, Li Lei Quan, Shi Xin, Ren Wen Qi, Meng Zi Yue, Ji Zhuo Ting, Hua Jing
机构信息
National and Local Joint Engineering Laboratory for Slag Comprehensive Utilization and Environmental Technology, School of Materials Science and Engineering, Shaanxi University of Technology (SNUT), Hanzhong, China.
Key Laboratory of Rubber-Plastics of Ministry of Education, Shandong Province, School of Polymer Science & Engineering, Qingdao University of Science & Technology, Qingdao, China.
出版信息
Front Chem. 2020 Apr 15;8:231. doi: 10.3389/fchem.2020.00231. eCollection 2020.
High selectivity and sensitivity detection of fluoride anions (F) in an organic solution by the naked eye has always been a challenge. In this investigation, a simple compound based on aminobenzodifuranone (ABDF) was designed and synthesized. Deprotonation of the amino moiety caused by F is responsible for a color change from dark blue to various colors (colorless, yellow, orange, and red) in different common organic solvents due to a blue shift over 200 nm in the UV/Vis spectrum. The color change is quite visible to the naked eye under ambient light. The detection limit for F can reach a concentration of as low as 5.0 × 10 M with high selectivity, even in a solution containing multiple anions.
通过肉眼对有机溶液中的氟阴离子（F⁻）进行高选择性和高灵敏度检测一直是一项挑战。在本研究中，设计并合成了一种基于氨基苯并二呋喃酮（ABDF）的简单化合物。F⁻导致氨基部分去质子化，由于紫外/可见光谱中超过200 nm的蓝移，在不同的常见有机溶剂中会引起颜色从深蓝色变为各种颜色（无色、黄色、橙色和红色）。在环境光下，这种颜色变化肉眼清晰可见。即使在含有多种阴离子的溶液中，F⁻的检测限也能达到低至5.0×10⁻⁶ M的浓度，且具有高选择性。
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