Crystal structure of catena-poly[[aqua(2,2′:6′,2′′-terpyridine-κ³N,N′,N′′)cobalt(II)]-μ-cyanido-κ²N:C-[dicyanidoplatinum(II)]-μ-cyanido-κ²C:N]

The title compound, [Co(C₁₅H₁₁N₃)(H₂O){Pt(CN)₄}] n , is a one-dimensional coordination polymer formed under hydrothermal reaction conditions. The Co^IIsite has sixfold coordination with a distorted octahedral geometry, while the Pt^IIion is coordinated by four cyanide groups in an almost regular square-planar geometry. The compound contains twofold rotation symmetry about its Co^IIion, the water molecule and the terpyridine ligand, and the Pt^IIatom resides on an inversion center. trans-Bridging by the tetracyanidoplatinate(II) anions links the Co^IIcations, forming chains parallel to [-101]. Additionally, each Co^IIatom is coordinated by one water molecule and one tridentate 2,2′:6′,2′′-terpyridine ligand. O - H⋯N hydrogen-bonding interactions are found between adjacent chains and help to consolidate the crystal packing. In addition, relatively weak π-π stacking interactions exist between the terpyridine ligands of adjacent chains [interplanar distance = 3.464 (7) Å]. No Pt⋯Pt interactions are observed in the structure.