The Pseudo-Racemic Complex Bis[tris(2,2'-bipyridine)ruthenium(II)] Hexacyanocobaltate(III) Chloride Octahydrate, [Ru(bpy)₃]₂[Co(CN)₆]Cl.8H₂O

Crystals of [Ru(C₁₀H₈N₂)₃]₂[Co(CN)₆]Cl.8H₂O (C₁₀H₈N₂ = bpy = 2,2'-bipyridine) which belong to the space group C2 were characterized by two `pseudo-racemic' crystallographically independent [Ru(bpy)₃]²⁺ cations. Three kinds of layers are found in the crystal structure: (i) the layer consisting of the [Lambda]-[Ru(bpy)₃]²⁺ cations. Three kinds of layers are found in the crystal structure: (i) a layer consisting of [Delta]-[Ru(bpy)₃]²⁺ cations and water molecules; (ii) a layer of [Co(CN)₆]^3- and Cl^- anions and water molecules; (iii) a layer of [Delta]-[Ru(bpy)₃]²⁺ cations and water molecules. The layers are stacked in the order (i), (ii), (iii) and (ii) almost perpendicularly to the c axis. Some O...O, O...N(cyano) and O...Cl hydrogen bonds construct networks within and between the layers.

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