Dimensional Isomerism in COFs Enabled by Spirobifluorene Substitution for Enhanced Photocatalytic CO

Xiaotao Wang, Hui Zhang, Xuhan Zheng, Jialin Cui, Miao Yu, Hui Liu, Yingjie Zhao

Abstract read

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Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Xiaotao WangState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.

Hui ZhangState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.

Xuhan ZhengState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.

Jialin CuiState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.

Miao YuState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.

Hui LiuState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.

Yingjie ZhaoState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.ORCID https://orcid.org/0000-0002-2668-3722

Funding

National Natural Science Foundation of China 22475115

6 · The paper itself

Abstract

The concept of dimensional isomerism-covalent organic frameworks (COFs) constructed from identical molecular precursors but forming structures of different dimensions-remains largely unexplored. Here, we report a pair of isomeric COFs derived from the same spirobifluorene core, wherein substitution at either the C2/C7 or C3/C6 positions leads to the formation of a planar two-dimensional (2D) or a nonplanar three-dimensional (3D) framework, respectively. This substitution-controlled strategy enables precise modulation of π-conjugation and framework dimensionality without altering the molecular identity of the building block. Comparative photocatalytic experiments reveal that the 2D C2/C7-substituted COF exhibits significantly superior CO

Indexed as

covalent organic frameworksisomerismmetal‐free photocatalytic CO2 reductionspirobifluoreneπ‐conjugation

Identifiers

PMID42206410

DOI10.1002/anie.1182476

PMCPMC13411492

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.