Three-Dimensional Covalent Organic Frameworks with jcg Topology Based on a Trinodal Strategy
The development of three-dimensional (3D) covalent organic frameworks (COFs) holds significant promise for various applications, but the conventional uninodal or binodal design strategies limit their structural diversity. In this work, we present a novel trinodal strategy for the synthesis of 3D COFs featuring both microporous and mesoporous nanochannels. Using powder X-ray diffraction (PXRD), computational simulations, and high-resolution transmission electron microscopy (HR-TEM), we demonstrate that employing an 8-c building block with reduced symmetry, which can be considered as 4- and 3-connected subunits, along with planar 4-c building blocks, results in an unprecedented [4 + 3 + 4]-c <b>jcg</b> net. This structure features rare saddle-shaped eight-membered rings and mirror-symmetrical chains. Furthermore, the incorporation of chromophore pyrene and redox-active triphenylamine components, coupled with structural conjugation, imparts tunable photophysical and electronic properties to these COFs, making them promising candidates for photocatalytic H<sub>2</sub>O<sub>2</sub> production. This work highlights the potential of the trinodal strategy in creating intricate COF architectures and enhances their applicability in heterogeneous photocatalysis.
Authors
- Valentin Valtchev (ORCID: https://orcid.org/0000-0002-2341-6397)
- Fengqian Chen (ORCID: https://orcid.org/0000-0002-2330-6403)
- Qianrong Fang (ORCID: https://orcid.org/0000-0003-3365-5508)
- Jianhong Chang
- Haorui Zheng (ORCID: https://orcid.org/0009-0004-5305-9062)
- Yusran Yusran (ORCID: https://orcid.org/0000-0002-1840-4922)
- Jie Ji (ORCID: https://orcid.org/0000-0001-5805-9978)
- Jie Zhang (ORCID: https://orcid.org/0000-0002-6195-8525)
- Zitao Wang (ORCID: https://orcid.org/0000-0002-7528-9115)
- Hui Li (ORCID: https://orcid.org/0000-0002-2689-2241)
- Shilun Qiu
- Dan Zhao (ORCID: https://orcid.org/0000-0002-4427-2150)
- Jinquan Suo
Institutions
- Centre National de la Recherche Scientifique (FR)
- University of Shanghai for Science and Technology (CN)
- National University of Singapore (SG)
- École Nationale Supérieure d'Ingénieurs de Caen (FR)
- Jilin University (CN)
- Chinese Academy of Sciences (CN)
- Normandie Université (FR)
- Laboratoire Catalyse et Spectrochimie (FR)
- Jilin Medical University (CN)
- Qingdao Institute of Bioenergy and Bioprocess Technology (CN)
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Xi'an Jiaotong University (CN)
- Université de Caen Normandie (FR)
Publication Details
- Journal
- Journal of the American Chemical Society
- Published
- 2025-04-08
- DOI
- https://doi.org/10.1021/jacs.5c00961
- Citations
- 34
- Primary Topic
- Covalent Organic Framework Applications
- Type
- article
- Field-Weighted Citation Impact
- 17.61
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center)