中国科学院福建物质结构研究所Mingyan Wu团队开发了一种非共价π堆积多孔有机分子框架，用于用于芳烃和环状脂肪烃的选择性分离。2022年3月29日出版的《德国应用化学》发表了这项成果。

该文中，团队报道了一种由多分子间π···π相互作用稳定的耐用多孔分子晶体(TAPM-1)。由于TAPM-1的长程π-堆积，这种材料具有良好的疏水性、热稳定性、可循环性，以及对芳烃超过相应环状脂肪烃的高吸附选择性。这使得TAPM-1可以作为高分辨率气相色谱的固定相，来分离苯和环己烷或甲苯和甲基环己烷。

研究人员表示，用多孔吸附剂进行选择性分离是一种替代传统分离技术的节能分离方法。具有非共价π···π相互作用的堆叠多孔有机分子框架(POMF)正作为绿色分离的新型吸附剂不断涌现出来。

附：英文原文

Title: A Noncovalent π-Stacked Porous Organic Molecular Framework for Selective Separation of Aromatics and Cyclic Aliphatics

Author: Cheng Chen, Haiyan Guan, Hengbo Li, Yunzhe Zhou, Yougui Huang, Wei Wei, Maochun Hong, Mingyan Wu

Issue&Volume: 2022-03-29

Abstract: Selective separation using porous adsorbents is an energy-efficient alternative to traditional separation techniques. Stacked porous organic molecular frameworks (POMF) capable of noncovalent π···π interactions are emerging as a new kind of adsorbents that facilitate green separation. Here we report a robust porous molecular crystal (  TAPM-1  ), which is stabilized by multiple intermolecular π···π interactions. With its long-range π-stacking,  TAPM-1  has excellent hydrophobicity, thermostability, recyclability, and high selectivity for aromatics over the corresponding cyclic aliphatics. This enables  TAPM-1  to serve as the stationary phase in the high-resolution gas chromatographic separation of benzene and cyclohexane or toluene and methylcyclohexane.

DOI: 10.1002/anie.202201646

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202201646