Scientific publications
2007Journal articleEnglish
Bis[tris(oxamide dioxime-κ 2 N , N ′)cobalt(III)] oxalate bis(sulfate) dodecahydrate (opens in a new tab)
Authors
University of Yaoundé I
Michel M. Bélombé
Gouet Bebga
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Scientific publications
Michel M. Bélombé
Gouet Bebga
Boniface P. T. Fokwa
Richard Dronskowski
Acta Crystallographica Section E Structure Reports Online
In the title compound, [Co(C2H6N4O2)3]2(C2O4)(SO4)212H2O, 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⋯O and N—H⋯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⋯O and N—H⋯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.