Enabling Rotated Stacking Displacement in Two‐Dimensional Covalent Organic Frameworks via Interlayer Electrostatic Repulsion
Abstract
ABSTRACT Tuning the interlayer stacking in 2D covalent organic frameworks (2D COFs) allows unique structural and optoelectronic properties. However, the diversity of 2D COF stacking modes is limited to eclipsed, serrated, and shifted stacking. In this study, we develop a method for constructing COFs with rotated stacking by modulating interlayer electrostatic repulsion. COFs with rotated or eclipsed (AA) stacking are obtained via reactions between triamine and dialdehyde monomers with or without pyridinium substituents. Importantly, the modulation of pyridinium substituents enables the transformation of different stacking modes, as well as the conversion of amorphous to crystalline materials. Moreover, multicomponent‐based stacking regulation strategies are found to efficiently mediate photocatalytic hydrogen peroxide production, owing to their tunable photophysical properties. Our findings provide perspectives on leveraging interlayer repulsion to tailor interlayer stacking in 2D COFs, thereby diversifying their topologies and improving their optoelectronic properties.
Article Details
Authors (13)
Xinkun Ma
School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
Wang‐Kang Han
Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
Haishan Zhu
Institute of Microstructure and Property of Advanced Materials College of Material Science and Engineering Beijing University of Technology Beijing China
Ting He
Division of Thyroid Surgery, Department of General Surgery and Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University
Zhifang Wang
Department of Chemistry, Institute of Molecular Aggregation Science, School of Science
Wei Zhou
Xue‐Song Wu
School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore Singapore
Yunxiang Ma
Ziyue Huang
School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore Singapore
Yue Zhao
Jingyu Zhang
East China University of Science and Technology , , ,
Chunqiang Zhuang
Institute of Microstructure and Property of Advanced Materials College of Material Science and Engineering Beijing University of Technology Beijing China
Yanli Zhao
School of Chemistry, Chemical Engineering and Biotechnology