Diversity of Covalent Organic Frameworks (COFs): A 2D COF Containing Two Kinds of Triangular Micropores of Different Sizes

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• 作者：Shun-Qi Xu ; Tian-Guang Zhan ; Qiang Wen ; Zhong-Fu Pang ; Xin Zhao
• 刊名：ACS Macro Letters
• 出版年：2016
• 出版时间：January 19, 2016
• 年：2016
• 卷：5
• 期：1
• 页码：99-102
• 全文大小：343K
• ISSN：2161-1653

文摘

Although a lot of covalent organic frameworks (COFs) have been constructed over the past 10 years, the topologies of COFs are still quite limited. In this work, we report one-step construction of a COF with an unprecedented topology from the combination of C₃-symmetrical and C₂-symmetrical building blocks. It contains two types of triangular micropores of different sizes and chemical environments: one is 11.3 ? and the other is 15.2 ?. The structure of the dual-pore COF was confirmed by powder X-ray diffraction (PXRD) investigation, nitrogen adsorption–desorption study, and theoretical calculations.