共价键
四面体
冷凝
硅烷
共价有机骨架
利乐
缩合反应
结晶学
甲烷
化学
纳米技术
材料科学
有机化学
催化作用
药物化学
物理
热力学
作者
Hani M. El‐Kaderi,Joseph R. Hunt,Jose L. Mendoza‐Cortes,Adrien P. Côté,Robert E. Taylor,M. O’Keeffe,Omar M. Yaghi
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2007-04-12
卷期号:316 (5822): 268-272
被引量:2157
标识
DOI:10.1126/science.1139915
摘要
Three-dimensional covalent organic frameworks (3D COFs) were synthesized by targeting two nets based on triangular and tetrahedral nodes: ctn and bor . The respective 3D COFs were synthesized as crystalline solids by condensation reactions of tetrahedral tetra (4-dihydroxyborylphenyl) methane or tetra (4-dihydroxyborylphenyl)silane and by co-condensation of triangular 2,3,6,7,10,11-hexahydroxytriphenylene. Because these materials are entirely constructed from strong covalent bonds (C-C, C-O, C-B, and B-O), they have high thermal stabilities (400° to 500°C), and they also have high surface areas (3472 and 4210 square meters per gram for COF-102 and COF-103, respectively) and extremely low densities (0.17 grams per cubic centimeter).
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