Large-Pore Apertures in a Series of Metal-Organic Frameworks

• DOI: 10.1126/science.1220131
• Publication Date: 2012-05-24T18:06:31Z
• Authors: Hexiang Deng; Sergio Grunder; Kyle E. Cordova; Cory Valente; Hiroyasu Furukawa; Mohamad Hmadeh; Felipe Gándara; Adam C. Whalley; Zheng Liu; Shunsuke Asahina; Hiroyoshi Kazumori; Michael O’Keeffe; Osamu Terasaki; J. Fraser Stoddart; Omar M. Yaghi
• Keywords: Angstrom; Thermal Stability

We report a strategy to expand the pore aperture of metal-organic frameworks (MOFs) into previously unattained size regime (>32 angstroms). Specifically, systematic expansion well-known MOF structure, MOF-74, from its original link one phenylene ring (I) two, three, four, five, six, seven, nine, and eleven (II XI, respectively), afforded an isoreticular series MOF-74 structures (termed IRMOF-74-I XI) with apertures ranging 14 98 angstroms. All members this have noninterpenetrating exhibit robust architectures, as evidenced by their permanent porosity high thermal stability (up 300°C). The oligoethylene glycol-functionalized IRMOF-74-VII IRMOF-74-IX are large enough for natural proteins enter pores.