BIS[TRIS(BIPYRIDINE)NICKEL(II)] TRIS[DICYANOARGENTATE(I)] CHLORIDE N-HYDRATE (N=9)

The structure of bis[tris(bipyridine)nickel(II)] tris[dicyanoargentate (I)] chloride nonahydrate, [Ni(C10H8N2)3]2[Ag(CN)2]3Cl.9H2O, is ionic. It comprises [Ni(bpy)3]2+ cations with threefold symmetry placed in t he cavities of a three-dimensional hydrogen-bonded network formed by N ...O and O...O type contacts between linear [Ag(CN)2]- anions and a he xagonal prismatic cluster of water molecules formed by the packing of two crystallographically independent water molecules. The Cl- anion is partially distributed over the positions of the O atoms. The Ni atom is in a six-coordinate N6 deformed octahedral environment with the Ni- N distances being almost equal: 2.093 (3) (3x) and 2.096 (3) angstrom (3x). The Ag-C distance is 2.052 (5) angstrom.