Tianjin Key Laboratory of Process Measurement and Control, Institute of Robotics and Autonomous Systems, Tianjin University, Tianjin, 300072, China.
Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education; Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, China.
Sci Rep. 2019 Jan 24;9(1):502. doi: 10.1038/s41598-018-36916-w.
Two macrocyclic bis-benzimidazolium salts 2 and 4 (23-membered for 2 and 25-membered for 4) were prepared, and their structures were confirmed by X-ray crystallography, H NMR and C NMR spectroscopy. The research of anion recognitions using 2 or 4 as hosts were carried out with the methods of fluorescence and ultraviolet spectroscopy, H NMR titrations, MS and IR spectra. The experiment results show that 2 can detect acetate anion and 4 can detect nitrate anion with favorable selectivity and sensitivity.
两种大环双苯并咪唑盐 2 和 4（23 元环的 2 和 25 元环的 4）被制备出来，并通过 X 射线晶体学、H NMR 和 C NMR 光谱学确认了它们的结构。使用 2 或 4 作为主体进行阴离子识别的研究采用了荧光和紫外光谱、H NMR 滴定、MS 和 IR 光谱等方法。实验结果表明，2 可以检测乙酸根阴离子，4 可以检测硝酸根阴离子，具有良好的选择性和灵敏度。
