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A novel series of isoreticular metal organic frameworks: realizing metastable structures by liquid phase epitaxy.


ABSTRACT: A novel class of metal organic frameworks (MOFs) has been synthesized from Cu-acetate and dicarboxylic acids using liquid phase epitaxy. The SURMOF-2 isoreticular series exhibits P4 symmetry, for the longest linker a channel-size of 3 × 3 nm(2) is obtained, one of the largest values reported for any MOF so far. High quality, ab-initio electronic structure calculations confirm the stability of a regular packing of (Cu(++))(2)- carboxylate paddle-wheel planes with P4 symmetry and reveal, that the SURMOF-2 structures are in fact metastable, with a fairly large activation barrier for the transition to the bulk MOF-2 structures exhibiting a lower, twofold (P2 or C2) symmetry. The theoretical calculations also allow identifying the mechanism for the low-temperature epitaxial growth process and to explain, why a synthesis of this highly interesting, new class of high-symmetry, metastable MOFs is not possible using the conventional solvothermal process.

SUBMITTER: Liu J 

PROVIDER: S-EPMC3513965 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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A novel series of isoreticular metal organic frameworks: realizing metastable structures by liquid phase epitaxy.

Liu Jinxuan J   Lukose Binit B   Shekhah Osama O   Arslan Hasan Kemal HK   Weidler Peter P   Gliemann Hartmut H   Bräse Stefan S   Grosjean Sylvain S   Godt Adelheid A   Feng Xinliang X   Müllen Klaus K   Magdau Ioan-Bogdan IB   Heine Thomas T   Wöll Christof C  

Scientific reports 20121204


A novel class of metal organic frameworks (MOFs) has been synthesized from Cu-acetate and dicarboxylic acids using liquid phase epitaxy. The SURMOF-2 isoreticular series exhibits P4 symmetry, for the longest linker a channel-size of 3 × 3 nm(2) is obtained, one of the largest values reported for any MOF so far. High quality, ab-initio electronic structure calculations confirm the stability of a regular packing of (Cu(++))(2)- carboxylate paddle-wheel planes with P4 symmetry and reveal, that the  ...[more]

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