Tris(2,2'-bipyridine)-copper(II) penta-cyanido-nitro-soferrate(II) methanol disolvate monohydrate.

The title complex [Cu(C10H8N2)3][Fe(CN)5(NO)]·2CH3OH·H2O, consists of discrete Cu(bpy)3 cations (bpy is 2,2'-bipyridine), Fe(CN)5NO anions and solvent mol-ecules of crystallization (two methanol mol-ecules and one water mol-ecules per asymmetric unit). The Cu(II) ion adopts a distorted octa-hedral environment, coordinated by six N atoms from three bpy ligands. The cation charge is balanced by a nitro-prusside counter-anion, which has a slightly distorted octa-hedral coordination geometry. In the crystal, anions and solvent mol-ecules are involved in O-H⋯N and O-H⋯O hydrogen bonds, which form chains along [100]. The cations are located between these chains.