Relationships Between Defectivity and Porosity in High Surface Area Porous Aromatic Frameworks.
Relationships Between Defectivity and Porosity in High Surface Area Porous Aromatic Frameworks.
复制标题
高表面积多孔芳香族骨架中的缺陷率和孔隙率之间的关系。
DOI：
10.1002/anie.202314120
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发表时间：
2024
期刊：
影响因子：
--
通讯作者：
Bour,JamesR
中科院分区：
文献类型：
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作者：
Porath,AnthonyJ;Lybrand,Tony;Bour,JamesR
众所周知，多孔芳香骨架（PAF）的微孔隙度强烈依赖于合成方法，但很少有人知道为什么某些反应会产生显著且持续更多孔的PAF。本文探讨了合成途径、PAF缺陷和微孔隙度之间的关系。使用网络拆卸策略，我们发现缺陷高度依赖于合成方法，并且更多缺陷的paf与较低的表面积和孔隙体积相关。这种经验关联通过系统地引入模型paf缺陷得到证实，这导致表观表面积和孔隙体积显著减少。综上所述，这些数据表明，只有高效的偶联反应才能用于合成超高表面积的多孔芳香骨架。
Porous aromatic framework (PAF) microporosity is known to be strongly dependent on synthetic approach but little is known about why certain reactions yield significantly and consistently more porous PAFs. This article explores the connections between synthetic pathway, PAF defectivity, and microporosity. Using a network disassembly strategy, we show that defectivity is highly dependent on synthetic approach and that more defective PAFs are associated with lower surface areas and pore volumes. This empirical association is corroborated through systematic introduction of defects to a modelPAF, which results in significant reduction of apparent surface area and pore volumes. Taken together, these data suggest that only highly efficient coupling reactions should be targeted for the synthesis of ultra‐high surface area porous aromatic frameworks.