Bis[tris(oxamide dioxime-κ2N,N′)-cobalt(III)oxalate bis(sulfate) dodecahydrate

In the title compound, [Co(C2H6N4O2)(3)](2)(C2O4)(SO4)(2)12H(2)O, the Co3+ ion adopts a distorted octahedral coordination involving six imino N atoms of three bidentate oxamide dioxime ligands. The oxalate ion is centrosymmetric. The bulk structure is consolidated by a network of O-H center dot center dot center dot O and NH center dot center dot center dot O hydrogen bonds, interconnecting the building blocks in such a manner that the framework delineates infinite channels parallel to [100]. The 12 water molecules are lodged inside the channels, six of them being O-H center dot center dot center dot O and N-H center dot center dot center dot O bonded to the ionic species, whilst the other six, located along the central axis of the channel, form infinite cyclohexameric water tapes. Two of the water molecules are disordered over two sites, in 0.786 (7):0.214 (7) and 0.637 (8):0.363 (8) ratios.