近日，中国科学院福建物质结构研究所袁大强团队报道了超稳定的sp²碳共轭多孔有机笼选择性高氯酸盐捕获和快速锂离子传输。相关论文发表在2026年1月13日出版的《结构化学》杂志上。

有机笼状化合物作为超分子主体材料的重要类别，凭借其固有的空腔结构，能够通过主客体相互作用捕获各类客体分子。迄今为止，基于此类主客体化学的潜在应用探索已成为研究热点。

研究组报道了一种通过四甲酰基功能化杯[4]间苯二酚芳烃与V形二乙腈亚基的Knoevenagel反应构筑的高稳定性sp²碳共轭多孔有机笼（简称sp²c-POC3）。X射线晶体结构分析表明，sp²c-POC3呈[2+4]型长灯笼状笼结构，包含四个平均边长约2.1 nm的菱形窗口，以及体积约782 ų的大空腔。

值得注意的是，该笼状结构能够选择性捕获高氯酸根阴离子。基于此阴离子捕获特性与多孔性质，研究组合理设计了一种以sp²c-POC3为主体、掺杂高氯酸锂的准固态电解质。该电解质在室温下表现出高达2.5×10^-3 S cm^-1的离子电导率。

附：英文原文

Title: Ultrastable sp2 carbon-conjugated porous organic cage for selective per-chlorate capture and fast lithiumion transport

Author: anonymous

Issue&Volume: 2026-01-13

Abstract: Organic cage compounds, which are among the most important classes of supramolecular hosts, have been found to be capable of capturing various guests through host-guest interactions due to their inherent cavities. To date, the exploration of potential applications based on such host-guest chemistry has been a subject of intensive research. Herein, we report a highly stable sp2 carbon-conjugated porous organic cage (POC), abbreviated as sp2c-POC3, formed via the Knoevenagel reaction between tetraformyl-functionalized calix[4]resorcinarene and V-shaped diacetonitrile subunits. X-ray crystallographic analysis reveals that sp2c-POC3 is a [2+4] long lantern-shaped cage. It contains four rhombic windows with an average edge length of approximately 2.1 nm and a large cavity with a volume of approximately 782 3. Notably, this cage can selectively capture perchlorate (ClO4-) anions. Taking advantage of such anion trapping ability and the porous nature, a quasi-solid-state electrolyte (QSSE) based on sp2c-POC3 and incorporating LiClO4 has been rationally designed. This sp2c-POC3-based QSSE exhibits a high ionic conductivity of 2.5×10-3 S cm-1 at room temperature.

DOI: 10.1016/j.cjsc.2025.100843

Source: https://cjsc.ac.cn/cms/issues/987