Large-pore apertures in a series of metal-organic frameworks.
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 noninterpenetrating structures and exhibit robust architectures, as evidenced by their permanent porosity and high thermal stability (up to 300°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.
Center for Reticular Chemistry, University of California, Los Angeles (UCLA)-US Department of Energy (DOE) Institute for Genomics and Proteomics, UCLA, Los Angeles, CA 90095, USA.
Hexiang
H
Deng
Sergio
S
Grunder
Kyle E
KE
Cordova
Cory
C
Valente
Hiroyasu
H
Furukawa
Mohamad
M
Hmadeh
Felipe
F
Gándara
Adam C
AC
Whalley
Zheng
Z
Liu
Shunsuke
S
Asahina
Hiroyoshi
H
Kazumori
Michael
M
O'Keeffe
Osamu
O
Terasaki
J Fraser
JF
Stoddart
Omar M
OM
Yaghi
D003460:Crystallization; D018360:Crystallography, X-Ray; D008274:Magnesium / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D010087:Oxides / Q000138:chemical synthesis / Q000737:chemistry; D010795:Phthalic Acids / Q000138:chemical synthesis / Q000737:chemistry; D016062:Porosity; D015032:Zinc / Q000737:chemistry
D010087:Oxides; D010795:Phthalic Acids; D008274:Magnesium; D015032:Zinc