School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, Singapore.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.
Nat Rev Chem. 2022 Dec;6(12):881-898. doi: 10.1038/s41570-022-00437-y. Epub 2022 Nov 11.
Covalent organic frameworks (COFs) are porous crystalline polymers that result from the formation of covalent bonds between precisely assembled organic units. Linkage chemistry is a crucial factor in the controllable synthesis and resulting physicochemical properties of COFs. Imine linkages are popular in the formation of polyfunctional two-dimensional (2D) COFs because they are formed easily with structural and functional diversity. There has been much recent interest in expanding beyond this to COFs with imine-derived linkages. This review highlights the development of chemistry to modify and prepare derivatives of imines within 2D COFs. We discuss the derivation of imine bonds via covalent and noncovalent bonding and the properties and potential applications of the resulting materials in order to provide a better understanding of the relationship between covalent linkages and overall performance for 2D COF materials.
共价有机框架（COFs）是由精确组装的有机单元之间形成共价键而产生的多孔结晶聚合物。连接化学是 COFs 可控合成和由此产生的物理化学性质的关键因素。亚胺键在多功能二维（2D）COFs 的形成中很受欢迎，因为它们很容易形成，具有结构和功能多样性。最近人们对超越这一点的具有亚胺衍生键的 COFs 产生了浓厚的兴趣。这篇综述强调了化学的发展，以修饰和制备 2D COFs 中的亚胺衍生物。我们讨论了通过共价和非共价键形成亚胺键，以及所得材料的性质和潜在应用，以便更好地理解 2D COF 材料中共价键与整体性能之间的关系。
