Acta Cryst. (2013). E69, m128
[ doi:10.1107/S1600536813002146 ]
Abstract: In the title hydrated mixed-cation salt, (C5H8N3)2[Co(H2O)6](SO4)2·2H2O, the complete octahedral hexaaqua complex cation is generated by crystallographic inversion symmetry. In the crystal, the components are linked by O-HO and N-HO hydrogen bonds, the latter, involving pyrimidinium cations and sulfate anions, generating R22(8) loops. These, together with - interactions between centrosymmetrically related pyrimidinium cations [centroid-centroid separation = 3.5460 (8) Å], lead to the formation of a three-dimensional network.
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