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Acid–base directed supramolecular isomers of isophthalate based MOFs for CO2 adsorption and transformation

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Abstract

The ubiquitous [Cu(O2CR)4] paddlewheel molecular building block (MBB) is renowned for producing highly porous metal–organic frameworks (MOFs), yet some carboxylate based ligands can result in supramolecular isomers. We show that it is possible to manipulate the synthesis conditions to favor one isomer over another yielding MOFs with either an lvt or nbo topology. These isomers exist because the 4-connected paddlewheel MBB and isophthalate based ligand can form either a square grid or a Kagomé lattice, where layers can join to give their respective framework topologies. Topology differences and accessible Cu(II) centers in isomers of [Cu2L]n were evaluated for their porous properties towards CO2 and their abilities to transform CO2 into value added chemicals under ambient conditions.

Graphical abstract: Acid–base directed supramolecular isomers of isophthalate based MOFs for CO2 adsorption and transformation

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Publication details

The article was received on 27 Feb 2017, accepted on 18 May 2017 and first published on 18 May 2017


Article type: Communication
DOI: 10.1039/C7CE00405B
Citation: CrystEngComm, 2017, Advance Article
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    Acid–base directed supramolecular isomers of isophthalate based MOFs for CO2 adsorption and transformation

    J. A. Perman, M. Chen, A. A. Mikhail, Z. Niu and S. Ma, CrystEngComm, 2017, Advance Article , DOI: 10.1039/C7CE00405B

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