Abstract
The solvothermal reaction of cobalt(II) nitrate and terephthalic acid in N,N-dimethylformamide (DMF) yields the polymeric title compound, poly[cobalt(II)-μ2-N,N-dimethylformamide-κ2O:O-μ4-terephthalato- κ4O:O′:O′′:O′′′], [Co(C8H4O4)(C3H7NO)]n. In the crystal structure, both the Co atom and the terephthalate group occupy special positions of 2/m site symmetry. The DMF ligand is located on a mirror plane with the N atom on a special position of site symmetry mm2. The octahedral coordination polyhedron around the Co atom has two opposite sites that are occupied by the O atoms of DMF molecules; the other sites are occupied by the carboxyl O atoms of four different terephthalate groups. The compound adopts an open framework structure having channels in which the disordered DMF molecules reside.
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