Poly[μ-aqua-diaqua­(μ(3)-N′-carboxy­methyl­ethylenediamine-N,N,N′-tri­acetato)oxidopotassium(I)vanadium(IV)]

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 octa­hedral geometry, coordinated by one oxide group, two N and three carboxylate O atoms from the same N′-carboxy­methyl­ethyl­ene­diamine-N,N,N′-triacetate (HEDTA) ligand. The potassium ion is hepta­coordinated by two water mol­ecules, two bridging water mol­ecules and three carboxylate O atoms from three neighbouring HEDTA ligands. The HEDTA ligands and some of the water mol­ecules 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.