A Proton Conductive Porous Framework of an 18-Crown-6-Ether Derivative Networked by Rigid Hydrogen Bonding Modules
A Proton Conductive Porous Framework of an 18-Crown-6-Ether Derivative Networked by Rigid Hydrogen Bonding Modules
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由刚性氢键模块网络化的 18-冠-6-醚衍生物的质子传导多孔框架
DOI：
10.1002/anie.202211686
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Ichiro Hisaki
中科院分区：
文献类型：
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作者：
Xin Chen;Rui-Kang Huang;Kiyonori Takahashi;Shin-ichiro Noro;Takayoshi Nakamura;Ichiro Hisaki
由C3对称六位羧酸和亲水性18冠6醚（18C6）组分构建了刚性氢键有机框架（HOF）。尽管具有多种构象的柔性大环结构，但外围具有三个4,4'-二羧基邻三联苯部分的衍生物通过定向分子间氢键产生刚性的层状多孔框架。有趣的是，HOF 拥有由 18C6 环组成的瓶颈一维通道。 HOF在98%RH下通过Grotthuss机制（Ea=0.27 eV）显示出质子传导性（1.12×10−7S cm−1）。目前独特的水道结构为创造分子多孔材料提供了灵感。
A rigid hydrogen‐bonded organic framework (HOF) was constructed from aC3‐symmetric hexatopic carboxylic acid with a hydrophilic 18‐crown‐6‐ether (18C6) component. Despite the flexible macrocyclic structure with many conformations, the derivative with three 4,4’‐dicarboxy‐o‐terphenyl moieties in the periphery yielded a rigid layered porous framework through directional intermolecular hydrogen bonding. Interestingly, the HOF possesses 1D channels with bottleneck composed of 18C6 rings. The HOF shows proton conductivity (1.12×10−7S cm−1) through Grotthuss mechanism (Ea=0.27 eV) under 98 %RH. The present unique water channel structure provides an inspiration to create molecular porous materials.