Synthesis and Visualization of Entangled 3D Covalent Organic Frameworks with High-Valency Stereoscopic Molecular Nodes for Gas Separation.

Gong, Chengtao; Wang, Hao; Sheng, Guan; Wang, Xiaokang; Xu, Xiaoqiu; Wang, Jian; Miao, Xiaohe; Liu, Yikuan; Zhang, Yinling; Dai, Fangna; Chen, Liangjun; Li, Nanjun; Xu, Guodong; Jia, Jianhong; Zhu, Yihan; Peng, Yongwu

Gong, Chengtao; Wang, Hao; Sheng, Guan; Wang, Xiaokang; Xu, Xiaoqiu; Wang, Jian; Miao, Xiaohe; Liu, Yikuan; Zhang, Yinling; Dai, Fangna; Chen, Liangjun; Li, Nanjun; Xu, Guodong; Jia, Jianhong; Zhu, Yihan; Peng, Yongwu.

Afiliação

Gong C; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Wang H; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Sheng G; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Wang X; School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
Xu X; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Wang J; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Miao X; The Instrumentation and Service Center for Physical Sciences, Westlake University, Hangzhou, 310024, Zhejiang, China.
Liu Y; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Zhang Y; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Dai F; School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
Chen L; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Li N; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Xu G; Jiangsu Province Engineering Research Center of Agricultural Breeding Pollution Control and Resource, Yancheng Teachers University, Yancheng, 224007, China.
Jia J; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Zhu Y; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh
Peng Y; Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zh

Angew Chem Int Ed Engl ; 61(32): e202204899, 2022 Aug 08.

Article em En | MEDLINE | ID: mdl-35639417

RESUMO

The structural diversity of three-dimensional (3D) covalent organic frameworks (COFs) are limited as there are only a few choices of building units with multiple symmetrically distributed connection sites. To date, 4 and 6-connected stereoscopic nodes with Td , D3h , D3d and C3 symmetries have been mostly reported, delivering limited 3D topologies. We propose an efficient approach to expand the 3D COF repertoire by introducing a high-valency quadrangular prism (D4h ) stereoscopic node with a connectivity of eight, based on which two isoreticular 3D imine-linked COFs can be created. Low-dose electron microscopy allows the direct visualization of their 2-fold interpenetrated bcu networks. These 3D COFs are endowed with unique pore architectures and strong molecular binding sites, and exhibit excellent performance in separating C2 H2 /CO2 and C2 H2 /CH4 gas pairs. The introduction of high-valency stereoscopic nodes would lead to an outburst of new topologies for 3D COFs.

Palavras-chave

covalent organic frameworks; entanglement; gas separation; high-valency; stereoscopic

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Texto completo: 1 Bases de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2022 Tipo de documento: Article