Fine Pore‐Structure Engineering by Ligand Conformational Control of Naphthalene Diimide‐Based Semiconducting Porous Coordination Polymers for Efficient Chemiresistive Gas Sensing
Fine Pore‐Structure Engineering by Ligand Conformational Control of Naphthalene Diimide‐Based Semiconducting Porous Coordination Polymers for Efficient Chemiresistive Gas Sensing
复制标题
通过配体构象控制萘二酰亚胺基半导体多孔配位聚合物的精细孔结构工程，实现高效化学电阻气体传感
DOI：
10.1002/anie.202215234
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Kitagawa Susumu
中科院分区：
文献类型：
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作者：
Xue Ziqian;Zheng Jia‐Jia;Nishiyama Yusuke;Yao Ming‐Shui;Aoyama Yoshitaka;Fan Zeyu;Wang Ping;Kajiwara Takashi;Kubota Yoshiki;Horike Satoshi;Otake Ken‐ichi;Kitagawa Susumu
探索具有可调结构和导电性的新型多孔配位聚合物（PCP）具有吸引力，但仍然具有挑战性。在本文中，实现了通过萘二酰亚胺（NDI）基半导体PCP的配体构象控制的精细孔结构工程化，所述半导体PCP具有π堆叠依赖的电导率可调性。通过采用不同配位几何构型的金属中心，可以调节这些等网格PCP中的π堆积距离和配体构象。结果，得到了具有不同孔结构和导电性的三种共轭PCP（Co−pyNDI、Ni−pyNDI和Zn−pyNDI）。其晶体结构通过三维电子衍射测定。这些PCP中的空间电荷转移和可调孔结构导致气体传感中的调制选择性和灵敏度。Zn-pyNDI可以作为一种室温下可操作的对丙酮有选择性的化学电阻传感器。
Exploring new porous coordination polymers (PCPs) that have tunable structure and conductivity is attractive but remains challenging. Herein, fine pore structure engineering by ligand conformation control of naphthalene diimide (NDI)‐based semiconducting PCPs with π stacking‐dependent conductivity tunability is achieved. The π stacking distances and ligand conformation in these isoreticular PCPs were modulated by employing metal centers with different coordination geometries. As a result, three conjugated PCPs (Co−pyNDI, Ni−pyNDI, and Zn−pyNDI) with varying pore structure and conductivity were obtained. Their crystal structures were determined by three‐dimensional electron diffraction. The through‐space charge transfer and tunable pore structure in these PCPs result in modulated selectivity and sensitivity in gas sensing. Zn−pyNDI can serve as a room‐temperature operable chemiresistive sensor selective to acetone.