Journal
DALTON TRANSACTIONS
Volume 40, Issue 45, Pages 12342-12349Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1dt10901d
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Funding
- Engineering and Physical Science Research Council (EPSRC)
- University of Nottingham
- CVCP
- Royal Society Leverhulme Trust
- Royal Society
- ERC
- EPSRC [EP/I020942/1, EP/I011870/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/C528964/1, EP/I011870/1, EP/I020942/1] Funding Source: researchfish
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Reaction of Co(NO3)(2)center dot 6H(2)O with H2L [H2L = pyridine-4-(phenyl-3',5'-dicarboxylic acid)] under different reaction conditions gives three closely-related metal-organic framework polymers, {[Co-2(L)(2)(DMF)]center dot n(solv)}(infinity) (1), {[Co(L)]center dot 2DMF}(infinity) (2) and {[Co-3(L)(3)(DMF)(0.5)(H2O)(1.5)]center dot n(solv)}(infinity) (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 H-2 at 78 K and 20 bar, respectively.
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