将同手性引入沸石咪唑酯骨架膜以实现高效手性分离。
Incorporation of Homochirality into a Zeolitic Imidazolate Framework Membrane for Efficient Chiral Separation.
作者信息
Chan Jun Yong, Zhang Huacheng, Nolvachai Yada, Hu Yaoxin, Zhu Haijin, Forsyth Maria, Gu Qinfen, Hoke David E, Zhang Xiwang, Marriot Philip J, Wang Huanting
机构信息
Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
Australian Centre for Research on Separation Science, Department of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.
出版信息
Angew Chem Int Ed Engl. 2018 Dec 21;57(52):17130-17134. doi: 10.1002/anie.201810925. Epub 2018 Nov 27.
Homochiral metal-organic frameworks (MOFs) have gained much attention because of their chiral properties and disposition for chiral separation. However, the fabrication of high-quality homochiral MOF membranes remains challenging because of the difficulty in controlling growth of MOF membranes with chiral functionalities. A homochiral zeolitic imidazolate framework-8 (ZIF-8) membrane is reported for efficient chiral separation. The membrane is synthesized by incorporating a natural amino acid, l-histidine (l-His), into the framework of ZIF-8. The homochiral l-His-ZIF-8 membrane exhibits a good selectivity for the R-enantiomer of 1-phenylethanol over the S-enantiomer, showing a high enantiomeric excess value up to 76 %.
同手性金属有机框架材料（MOFs）因其手性特性和在手性分离方面的应用潜力而备受关注。然而，由于难以控制具有手性功能的MOF膜的生长，高质量同手性MOF膜的制备仍然具有挑战性。本文报道了一种用于高效手性分离的同手性沸石咪唑酯骨架材料-8（ZIF-8）膜。该膜通过将天然氨基酸L-组氨酸（L-His）引入ZIF-8骨架中合成。同手性L-His-ZIF-8膜对1-苯乙醇的R-对映体比对S-对映体表现出良好的选择性，对映体过量值高达76%。
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