摘要
Two Co(II) metal organic frameworks with 2, 2'-dinitrobipheny1-4,4'-dicarboxylate (dnpdc) and different dipyridyl ligands have been synthesized by hydrothermal methods. They exhibit different three-dimensional mixed-connected net topologies with either interpenetration or self-catenation features. With dnpdc and 4,4'-bipyridine as cobridging ligands, compound 1 displays 3-fold interpenetrated (4,6)-connected nets based on mononuclear and binuclear nodes. With dnpdc and bis(4-pyridl)ethane as cobridging ligands, compound 2 exhibits a novel (6,8)-connected net based on two different binuclear nodes, with a high degree of self-catenation arising from the interconnection of "interpenetrated" 2D subnets.
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单位华东师范大学