Pyridinium trans-di­aqua­bis­[oxalato(2−)-κ(2) O (1),O (2)]chromate(III) urea monosolvate

The asymmetric unit of the title solvated mol­ecular salt, (C(5)H(6)N)[Cr(C(2)O(4))(2)(H(2)O)(2)]·CO(NH(2))(2), contains half a formula unit. Each component is completed by crystallographic twofold symmetry: in the cation, one C and the N atom lie on the rotation axis; in the anion, the Cr(III) ion lies on the axis; in the solvent mol­ecule, the C and the O atom lie on the axis. The aqua ligands are in a trans disposition in the resulting CrO(6) octa­hedron. In the crystal, the components are linked by O—H⋯O, N—H⋯O and N—H⋯(O,O) hydrogen bonds, generating a three-dimensional network.