title: Poly[bis-(1,3-dimethyl-imidazolidin-2-one)(μ2-2,5-dioxidoterephthalato)zirconium(IV)].
abstract: In the title coordination polymer, [Zr(C8H2O6)(C5H10N2O)2] n , the Zr(IV) atom (site symmetry 2) is coordinated by two O,O'-bidentate 2,5-dioxidoterephthalate (DHTP(4-)) ligands and two O-bonded 1,3-dimethyl-2-imidazolidinone (DMI) ligands (the latter in a cis orientation) in a distorted ZrO6 octa-hedral geometry. The deprotonated hy-droxy and carb-oxy O atoms of the DHTP(4-) ligand chelate the Zr(IV) ion via a six-membered ring; the dihedral angle between the carboxyl-ate group and the aromatic ring is 14.46 (11)°. The DHTP(4-) ligand is completed by crystallographic inversion symmetry and coordinates to two Zr(IV) atoms, thereby forming polymeric zigzag chains propagating in [001].
authors.affiliation: Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, PO Box 1126, 0315 Oslo, Norway.
authors.forename: Matthias
authors.initials: M
authors.lastname: Maercz
authors.forename: David Stephen
authors.initials: DS
authors.lastname: Wragg
authors.forename: Pascal Daniel Croumbie
authors.initials: PD
authors.lastname: Dietzel
authors.forename: Helmer
authors.initials: H
authors.lastname: Fjellvåg