Wang Xue-Zhi, Chen Damien W, Fadaei-Tirani Farzaneh, Zhou Xiao-Ping, Severin Kay
Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland.
College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry, Jinan University, Guangzhou, 510632, P.R. China.
Angew Chem Int Ed Engl. 2025 May 26;64(22):e202504880. doi: 10.1002/anie.202504880. Epub 2025 Mar 27.
A supramolecular receptor for short-chain perfluoroalkyl carboxylates was developed. The receptor displays a cage-like geometry, with a defined binding site for the carboxylate head groups and an opening for the perfluoroalkyl side chains. The anionic guests are bound via multiple CH···O hydrogen bonds, as revealed by the crystallographic analysis of an adduct between the receptor and trifluoroacetate. The receptor can be used for the selective extraction of perfluoroalkyl carboxylates from buffered aqueous solutions containing fluoride, chloride, nitrate, carbonate, acetate, and phosphate.
开发了一种用于短链全氟烷基羧酸盐的超分子受体。该受体呈现出笼状几何结构，具有用于羧酸根头部基团的特定结合位点和全氟烷基侧链的开口。阴离子客体通过多个C-H···O氢键结合，这是通过受体与三氟乙酸盐加合物的晶体学分析揭示的。该受体可用于从含有氟化物、氯化物、硝酸盐、碳酸盐、乙酸盐和磷酸盐的缓冲水溶液中选择性萃取全氟烷基羧酸盐。
