Effects of connecting sequences of building blocks on reticular synthesis of covalent organic frameworks
作者机构：State Key Lab of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan Universityf Changsha 410082China Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional MoleculesCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling RoadShanghai 200032China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2021年第14卷第2期
页 面：381-386页
核心收录：
学科分类：0808[工学-电气工程] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 070303[理学-有机化学] 0703[理学-化学] 0702[理学-物理学]
基 金：We thank the National Natural Science Foundation of China(Nos.21632004,51578224) the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB20020000) Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,Chinese Academy of Sciences(No.K2018-2)for financial support.C.Qian is grateful for support from H unan Provincial Innovation Foundation for Postgraduate(No.CX2016B119)
主 题：reticular chemistry covalent organic framework connecting sequence building block
摘 要：The principle of reticular chemistry has been widely used to guide the design of crystalline porous materials such as metal organic frameworks(MOFs)and covalent organic frameworks(COFs).While in the early strategies only the symmetries of the building blocks were considered for reticular synthesis of COFs,recently a few researches on COFs with hierarchical porosities indicate that connecting sequence of building blocks also plays a crucial role in determining crystalline structures of ***,this important phenomenon has not been systematically investigated *** this article,a model system has been established to demonstrate how different connecting sequences of two C_(2v)-symmetric building blocks lead to the formation of four two-dimensional(2D)COFs with distinct framework *** verify this concept,target synthesis was conducted to produce three COFs,whose structures were confirmed by powder X-ray diffraction and pore size distribution analysis.
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