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Acta Cryst. (2013). E69, m153
[ doi:10.1107/S1600536813003437 ]


M. Maercz, D. S. Wragg, P. D. C. Dietzel and H. Fjellvåg

Abstract: In the title coordination polymer, [Zr(C8H2O6)(C6H12N2O)2]n, the ZrIV atom, which lies on a crystallographic twofold rotation axis, is coordinated by two O,O'-bidentate 2,5-dioxidoterephthalate (DHTP4-) ligands and two O-bonded 1,3-dimethyl-1,3-diazinan-2-one (DMPU) ligands (the latter in a cis orientation) in a distorted ZrO6 octahedral geometry. The deprotonated hydroxy and carboxy O atoms of the DHTP4- ligand chelate the ZrIV ion via a six-membered ring; the dihedral angle between the carboxylate group and the aromatic ring is 19.94 (11)°. The DHTP4- ligand is completed by crystallographic inversion symmetry and coordinates to two ZrIV atoms, thereby forming polymeric zigzag chains propagating in the c-axis direction.

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