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Acta Cryst. (2013). E69, m150-m151
[ doi:10.1107/S1600536813003413 ]

catena-Poly[[[aquacopper(II)]-bis[[mu]-N,N'-bis(pyridin-4-yl)isophthalamide]-[aquacopper(II)]-di-[mu]-sulfato] dimethylformamide disolvate]

E.-P. Zhang, L.-P. Wang and Y.-F. Wang

Abstract: In the title coordination polymer, {[Cu(SO4)(C18H14N4O2)(H2O)]·C3H7NO}n, the CuII ion is coordinated by two N atoms of two briding N,N'-bis(pyridin-4-yl)isophthalamide ligands, two O atoms of two bridging SO42- anions and a water molecule, giving a distorted CuN2O3 square-pyramidal geometry. The whole repeating molecular unit is generated by inversion symmetry. This leads to the formation of a looped-chain one-dimensional coordination polymer propagating along [110]. The dimethylformamide (DMF) molecules are linked to the chains via O-H...O hydrogen bonds. The chains are linked via N-H...O hydrogen bonds, forming two-dimensional networks parallel to (001). There are also a number of C-H...O interactions present and a parallel slipped [pi]-[pi] interaction. The latter involves inversion-related pyridine rings with a centroid-centroid distance of 3.594 (2) Å [normal distance = 3.3338 (13) and slippage = 1.341 Å]. These interactions lead to the formation of a three-dimensional structure.

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