Porous, crystalline, covalent organic frameworks
Porous, crystalline, covalent organic frameworks
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DOI：
10.1126/science.1120411
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发表时间：
2005-11-18
期刊：
影响因子：
56.9
通讯作者：
Yaghi, OM
中科院分区：
文献类型：
--
作者：
Côté, AP;Benin, AI;Yaghi, OM
通过苯基二硼酸{C6H4[B(OH)(2)](2)}与六羟基三苯基[C18H6(OH)(6)]的缩合反应，设计并成功合成了共价有机骨架(COF)。高结晶产物(C3H2BO)(6)、中心点(C9H12)(1)(COF-1)和C9H4BO2(COF-5)的粉末X射线衍射研究表明，膨胀的多孔石墨层要么交错(COF-1，P6(3)/MMC)，要么被遮挡(COF-5，P6/mm)。它们的晶体结构完全被B、C和O原子之间的强键所占据，形成了孔径从7埃到27埃的坚硬的多孔结构。COF-1和COF-5表现出高热稳定性(温度高达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平方米和1590平方米)。
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)center dot(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).