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

Jinxuan Liu, Binit Lukose, Osama Shekhah, Hasan Kemal Arslan, Peter Weidler, Hartmut Gliemann, Stefan Bräse, Sylvain Grosjean, Adelheid Godt, Xinliang Feng, Klaus Müllen, Ioan Bogdan Magdau, Thomas Heine, Christof Wöll

Research output: Contribution to journalArticlepeer-review

116 Citations (Scopus)

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 nm2 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.

Original languageEnglish
Article number921
JournalScientific reports
Volume2
DOIs
Publication statusPublished - 2012

Bibliographical note

Funding Information:
We thank Ms. Hülsmann, Bielefeld University, for the preparation of P(EP)2DC. Financial support by Deutsche Forschungsgemeinschaft (DFG) within the Priority Program Metal-Organic Frameworks (SPP 1362) is gratefully acknowledged. T.H. acknowledges financial support by the European Research Council (GA ERC-StG-256962 C3ENV).

All Science Journal Classification (ASJC) codes

  • General

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