Tris(3,4,7,8-tetra-methyl-1,10-phenanthrolin-1-ium) hexa-cyanidocobaltate(III) penta-hydrate.

The structure of the title compound, (C16H17N2)3[Co(CN)6]·5H2O, consists of three 3,4,7,8-tetra-methyl-1,10-phenanthrolin-1-ium cations, a [Co(CN)6](3-) anion and five water mol-ecules of crystallization, one of which is disordered over two sets of sites in a 0.587 (15):0.413 (15) ratio. The [Co(CN)6](3-) anion exhibits an octa-hedral geometry. In the structure, cations and anions are linked alternatively through O-H⋯O, O-H⋯N, N-H⋯O and N-H⋯N hydrogen bonds, π-π inter-actions [centroid-centroid distances = 3.523 (2)-4.099 (2) Å] and van der Waals forces, forming a three-dimensional supra-molecular network.