Structure, topology, gas adsorption and photoluminescence of multifunctional porous RE3+-furan-2,5-dicarboxylate metal organic frameworks

• New family of rare-earth bearing porous metal organic frameworks.
• Multifunctional exhibiting porosity and photoluminescence with high quantum efficiency.
• Selective adsorption of CO2 from CH4 and C2H6.
• The single crystal photoluminescence indicating strong optical anisotropy.
• The photoluminescence varied upon rehydration and dehydration.

Three new isomorphic porous MOFs with the molecular formula of RE2(phen)2(fdc)3·2(H2O) have been hydrothermally synthesized. The structure, topology, compositions and thermal stability were studied in detail. They show unique H2O and H2S adsorption, CO2 selective separation from mixed CH4 and C2H6 gases, and interesting photoluminescence in both bulk powder and a single crystal particle, in particular, the luminescence of bulk powder form changes upon dehydration which may be found applications as multifunctional materials.

This porous MOF shows H2S adsorption at very low concentration and single crystal photoluminescence.Figure optionsDownload as PowerPoint slide