DataVXChemistry of MaterialsPaper
journal article·2025-03-11

Constructing Three-Dimensional Covalent Organic Framework with aea Topology and Flattened Spherical Cages

Zonglong Li, Jia Chen, Guojie Xu, Zhuozhuo Tang, Xiaotao Liang, Guo Tian, Feng Lu, Yaxiong Yu, Yanliang Wen, Jiangong Yang, Mingpei Wang, Yen Wei, Yang Yang, Fei Wei, Chenxi Zhang

Chemistry of Materials· Volume 37· Issue 5
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Source abstract

Abstract

Constructing three-dimensional (3D) covalent organic frameworks (COFs) with novel topologies is one of the most effective strategies to enhance the diversity and complexity of crystalline organic porous materials. Herein, we have designed and synthesized a 3D COF (3D-OLC-aea-COF, OLC = Ordos Laboratory China) with an unprecedented aea topology, condensed from the 12-connected building units (triptycene-12-aldehyde) and the planar 3-connected building units. Structural simulations and high-resolution transmission electron microscopy successfully determined the crystal structure. Interestingly, the unique connection between two precursors creates novel cages with large cavities and small windows within the framework, which will likely bring valuable implications for guest molecular storage and nanoreactors. Notably, huge intrinsic free volume (IFV) of triptycene and the periodic arrangement of cages endowed 3D-OLC-aea-COF with excellent CO 2 capture capability. This work not only enhances the topological diversity and structural complexity of 3D COFs based on high-connectivity building units (≥8) but also provides inspiration for designing targeted materials through structure–activity relationships.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Covalent Organic Framework Applications · Metal-Organic Frameworks: Synthesis and Applications · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Ordos Laboratory

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering

Tsinghua University

Institute of Nuclear and New Energy Technology

Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology of the Ministry of Education, Department of Chemistry

School of Chemical Engineering

Sichuan University

School of Energy Science and Engineering

Central South University

Ordos Carbon Neutral Research and Application Co., Ltd.

Institute for Carbon Neutrality

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Beijing Nova Program · Ordos Laboratory · Key Research and Development Program of Inner Mongolia and Ordos · Ordos-Tsinghua Innovative & Collaborative Research Pro-gram in Carbon Neutrality and Ordos Laboratory · Ordos?Tsinghua Innovative and Collaborative Research Program in Carbon Neutrality

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