Two interpenetrating 3D MOFs constructed by bis(imidazole) and V-shape carboxylate co-ligands: synthesis, structure, gas adsorption and photoluminescent properties.

Two 3-D MOFs, {[Co2(oba)2(bmip)]·DMA}n(1) and [Cd(1,3-bdc)(bmip)]n(2), where H2oba = 4,4′-oxybis(benzoic acid), 1,3-bdc = isophthalic acid and bmip = 1,3-bis(2-methylimidazolyl)propane, were synthesized under solvothermal conditions and characterized by single-crystal X-ray diffraction, powder XRD, FT-IR, TGA, and elemental analysis. Complex1features a 3-D→3-D twofold interpenetrating framework, and topological analysis shows the framework can be described as a 6-connected uninodalpcunet having the point symbol (412.63). Complex2shows a 3-D→3-D threefold interpenetrating network that can be described as a 4-connected uninodalcdsnet with (65.8) topology. Gas adsorptions of1were carried out, and photoluminescent properties of1and2were also investigated at room temperature. [ABSTRACT FROM PUBLISHER]