In the crystal structure of the title compound, [KV(C10H13N2O8)O(H2O)3]n, the VIV ion adopts a distorted octahedral geometry, coordinated by one oxide BNF 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,

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