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>A Polyhedral Metal-Organic Framework Based on Supramolecular Building Blocks: Catalysis and Luminescent Sensing of Solvent Molecules
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A Polyhedral Metal-Organic Framework Based on Supramolecular Building Blocks: Catalysis and Luminescent Sensing of Solvent Molecules
A multifunctional polyhedral metal organic framework with a pcu network topology based on supra molecular building blocks can be constructed by the reaction of Eu(NO3)(3) and pyridine-3,5-dicarboxylic acid (H2PDC). The basic Eu-III paddlewheel nodes as secondary building units (SBUs) are connected by PDC ligands to generate nanosized metal-organic cuboctahedra (MOCs), which are further connected by sharing the paddlewheel SBUs to give rise to a three-dimensional primitive cubic network arrangement. The obtained metal-organic frameworks (MOFs) exhibit excellent catalytic activity toward the cyanosilylation of aromatic aldehydes and could be reused without loss of activity: In addition, they can also be considered as a fluorescent probe for nitrobenzene sensing based on luminescence quenching effects arising from host-guest interactions. This porous MOF combining catalytic and fluorescent properties could further meet the requirement as a multifunctional material.
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