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A Chemically Functionalizable Nanoporous Material [Cu3(TMA)2(H2O)3]n

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Science  19 Feb 1999:
Vol. 283, Issue 5405, pp. 1148-1150
DOI: 10.1126/science.283.5405.1148

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Abstract

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 [Cu3(TMA)2(H2O)3]n(where TMA is benzene-1,3,5-tricarboxylate) was formed in 80 percent yield. It has interconnected [Cu2(O2CR)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.

  • * To whom correspondence should be addressed. E-mail: chwill{at}ust.hk

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