Journal
CRYSTENGCOMM
Volume 18, Issue 22, Pages 4172-4179Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ce00082g
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Funding
- Science and Industry Endowment Fund (SIEF)
- Australian Research Council [FT100100400, FT0991910, DE160100306]
- Japan Society for the Promotion of Science
- World Premier International Research Initiative (WPI), MEXT, Japan
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The application of metal-organic frameworks (MOFs) for gas storage, molecular separations and catalysis necessitates careful consideration of the particle size and structuralisation (e.g. pelletisation, surface-anchoring) of a material. Recently, particle size has been shown to dramatically alter the physical and structural properties of certain MOFs, but overall there is limited information on how the particle size affects the properties of flexible MOFs. Here we demonstrate that the particle size of a flexible MOF, specifically the as-synthesised form of [Cu(bcppm)H2O]center dot S (H(2)bcppm = bis(4-(4-carboxyphenyl)-1H-pyrazolyl)methane, S = solvent) (1), correlates with the rate of structural reorganisation from a kinetically-trapped, activated 3D form of this MOF to an open 2D form of the structure. We also outline two methods for synthetically reducing the particle size of 1 at room temperature, using 0.1 M NaOH (for two reaction times: 0.5 and 16 h) and with the sodium salt of the ligand Na(2)bcppm, producing crystals of 85 +/- 15, 280 +/- 14 and 402 +/- 41 nm, respectively.
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