title: Poly[μ-aqua-diaqua-(μ(3)-N'-carboxy-methyl-ethylenediamine-N,N,N'-tri-acetato)oxidopotassium(I)vanadium(IV)].
abstract: In the crystal structure of the title compound, [KV(C(10)H(13)N(2)O(8))O(H(2)O)(3)](n), the V(IV) ion adopts a distorted octa-hedral geometry, coordinated by one oxide group, two N and three carboxylate O atoms from the same N'-carboxy-methyl-ethyl-ene-diamine-N,N,N'-triacetate (HEDTA) ligand. The potassium ion is hepta-coordinated by two water mol-ecules, two bridging water mol-ecules and three carboxylate O atoms from three neighbouring HEDTA ligands. The HEDTA ligands and some of the water mol-ecules act as bridges, linking the compound into a three-dimensional architecture via 2(1) screw, c-glide, translation and inversion symmetry operators. Meanwhile, three types of O-H⋯O hydrogen bonds provide an additional stabilization of the three-dimensional architecture.
authors.affiliation: Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
authors.forename: Rui-Hong
authors.initials: RH
authors.lastname: Zhang
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Lu
authors.forename: Ming-Xia
authors.initials: MX
authors.lastname: Li
authors.forename: Miao-Li
authors.initials: ML
authors.lastname: Zhu