纳米孔
热稳定性
重量分析
苯
材料科学
多孔性
产量(工程)
热重分析
纳米
聚合物
单晶
化学
戒指(化学)
纳米技术
结晶学
化学工程
有机化学
复合材料
工程类
作者
Stephen S.-Y. Chui,Samuel M. F. Lo,Jonathan P. H. Charmant,A. Guy Orpen,Ian D. Williams
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1999-02-19
卷期号:283 (5405): 1148-1150
被引量:5266
标识
DOI:10.1126/science.283.5405.1148
摘要
Although zeolites and related materials combine nanoporosity with high thermal stability, they are difficult to modify or derivatize in a systematic way. A highly porous metal coordination polymer [Cu 3 (TMA) 2 (H 2 O) 3 ] n (where TMA is benzene-1,3,5-tricarboxylate) was formed in 80 percent yield. It has interconnected [Cu 2 (O 2 CR) 4 ] units (where R is an aromatic ring), which create a three-dimensional system of channels with a pore size of 1 nanometer and an accessible porosity of about 40 percent in the solid. Unlike zeolites, the channel linings can be chemically functionalized; for example, the aqua ligands can be replaced by pyridines. Thermal gravimetric analysis and high-temperature single-crystal diffractometry indicate that the framework is stable up to 240°C.
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