College of Life Science and Technology, National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan, 430074, China.
School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
Angew Chem Int Ed Engl. 2021 Jun 1;60(23):12781-12785. doi: 10.1002/anie.202102350. Epub 2021 Apr 29.
Enantiomers of 2, 6-diaminotriptycene (R, R-1 and S, S-1) are split by chiral-phase HPLC and their absolute configurations are identified by single-crystal X-ray diffraction technology. Using the enantiomers as monomers, a couple of chiral porous polyimides (R-FTPI and S-FTPI) are prepared by polycondensation reactions and display good heat stability, high BET surface area and good solubility in organic solvents. Moreover, both of R-FTPI and S-FTPI can be cast into robust, free-standing films suitable for enantioselective separation with symmetrical chiral selectivity.
2,6-二氨基苝的对映异构体（R,R-1 和 S,S-1）通过手性相高效液相色谱法拆分，并通过单晶 X 射线衍射技术确定其绝对构型。使用这些对映异构体作为单体，通过缩聚反应制备了一对手性多孔聚酰亚胺（R-FTPI 和 S-FTPI），它们具有良好的热稳定性、高 BET 比表面积和良好的有机溶剂溶解性。此外，R-FTPI 和 S-FTPI 均可浇铸成坚固的、独立的薄膜，适用于具有对称手性选择性的对映体选择性分离。
