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Issue 45, 2011
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Increasing nuclearity of secondary building units in porous cobalt(II) metal–organic frameworks: Variation in structure and H2 adsorption

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Abstract

Reaction of Co(NO3)2·6H2O with H2L [H2L = pyridine-4-(phenyl-3′,5′-dicarboxylic acid)] under different reaction conditions gives three closely-related metal–organic framework polymers, {[Co2(L)2(DMF)]·n(solv)} (1), {[Co(L)]·2DMF} (2) and {[Co3(L)3(DMF)0.5(H2O)1.5n(solv)} (3). Variation in reaction conditions thus has a decisive impact on the materials isolated, producing frameworks based upon either binuclear (1, 2) or trinuclear (3) cobalt cluster nodes. Analysis of their crystal structures shows that all three contain considerable solvent-accessible volumes, an indication of porosity that is confirmed for desolvated 1 and 3, which can store up to 2.75 and 2.33 wt% of H2 at 78 K and 20 bar, respectively.

Graphical abstract: Increasing nuclearity of secondary building units in porous cobalt(ii) metal–organic frameworks: Variation in structure and H2 adsorption

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Publication details

The article was received on 12 May 2011, accepted on 07 Sep 2011 and first published on 25 Oct 2011


Article type: Paper
DOI: 10.1039/C1DT10901D
Dalton Trans., 2011,40, 12342-12349

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    Increasing nuclearity of secondary building units in porous cobalt(II) metal–organic frameworks: Variation in structure and H2 adsorption

    J. Jia, H. S. Athwal, A. J. Blake, N. R. Champness, P. Hubberstey and M. Schröder, Dalton Trans., 2011, 40, 12342
    DOI: 10.1039/C1DT10901D

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