Journal
SCIENCE
Volume 336, Issue 6084, Pages 1018-1023Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1220131
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Funding
- BASF SE (Ludwigshafen, Germany)
- Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center (EFRC)
- DOE, Office of Science, Office of Basic Energy Sciences (U.S. DOE-BES) [DE-SC0001015]
- U.S. Department of Defense, Defense Threat Reduction Agency [HDTRA11-1-0018]
- Non-equilibrium Energy Research Center, EFRC
- U.S. DOE-BES [DE-SC0000989]
- World Class University [R-31-2008-000-10055-0]
- NIH-National Center for Research Resources [CJX1-443835-WS-29646]
- NSF [CHE-0722519]
- Swiss National Science Foundation
- Spanish Ministry of Education
- National Research Foundation of Korea [R31-2012-000-10055-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report a strategy to expand the pore aperture of metal-organic frameworks (MOFs) into a previously unattained size regime (>32 angstroms). Specifically, the systematic expansion of a well-known MOF structure, MOF-74, from its original link of one phenylene ring (I) to two, three, four, five, six, seven, nine, and eleven (II to XI, respectively), afforded an isoreticular series of MOF-74 structures (termed IRMOF-74-I to XI) with pore apertures ranging from 14 to 98 angstroms. All members of this series have non-interpenetrating structures and exhibit robust architectures, as evidenced by their permanent porosity and high thermal stability (up to 300 degrees C). The pore apertures of an oligoethylene glycol-functionalized IRMOF-74-VII and IRMOF-74-IX are large enough for natural proteins to enter the pores.
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