Côté Adrien P, Benin Annabelle I, Ockwig Nathan W, O'Keeffe Michael, Matzger Adam J, Yaghi Omar M
Materials Design and Discovery Group, Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109-1055, USA.
Science. 2005 Nov 18;310(5751):1166-70. doi: 10.1126/science.1120411.
Covalent organic frameworks (COFs) have been designed and successfully synthesized by condensation reactions of phenyl diboronic acid {C6H4[B(OH)2]2} and hexahydroxytriphenylene [C18H6(OH)6]. Powder x-ray diffraction studies of the highly crystalline products (C3H2BO)6.(C9H12)1 (COF-1) and C9H4BO2 (COF-5) revealed expanded porous graphitic layers that are either staggered (COF-1, P6(3)/mmc) or eclipsed (COF-5, P6/mmm). Their crystal structures are entirely held by strong bonds between B, C, and O atoms to form rigid porous architectures with pore sizes ranging from 7 to 27 angstroms. COF-1 and COF-5 exhibit high thermal stability (to temperatures up to 500 degrees to 600 degrees C), permanent porosity, and high surface areas (711 and 1590 square meters per gram, respectively).
通过苯基二硼酸{C6H4[B(OH)2]2}与六羟基三亚苯[C18H6(OH)6]的缩合反应，设计并成功合成了共价有机框架（COFs）。对高结晶产物（C3H2BO）6·(C9H12)1（COF-1）和C9H4BO2（COF-5）进行的粉末X射线衍射研究表明，其具有扩展的多孔石墨层，这些层要么是交错排列的（COF-1，P6(3)/mmc），要么是重叠排列的（COF-5，P6/mmm）。它们的晶体结构完全由硼（B）、碳（C）和氧（O）原子之间的强键维系，形成了孔径范围为7至27埃的刚性多孔结构。COF-1和COF-5表现出高热稳定性（高达500摄氏度至600摄氏度）、永久孔隙率和高比表面积（分别为每克711和1590平方米）。
