Stabilization of 2D Imine-Linked Covalent Organic Frameworks: From Linkage Chemistry to Interlayer Interaction
Guoxing Jiang1, Wenwu Zou1, Zhaoyuan Ou1
1Guangdong Provincial Key Laboratory of Fuel Cell Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, P. R. China.
Abstract:
Imine-linked covalent organic frameworks (imine-COFs) represent the most sought-after class of COFs due to their broad monomer scope and ease of synthesis. Owing to the reversible nature of imine linkages, however, the chemical stability of most imine-COFs is still far from adequate. In this context, emerging strategies, ranging from linkage chemistry to interlayer interaction, have been employed to construct stable imine-COFs for their applications in electronics, sensing, and energy storage devices. This Concept article summarizes the latest advances aimed at tuning the structural stability of imine-COFs. Furthermore, this Concept provides a prospective for the precise design of stable imine-COFs based on the characteristics of structure, physical properties, and chemical functions, as well as the mechanism of structure locking and stabilization during crystal growth.
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