-Poly[[bis-(quinolin-8-amine-κ ,')cadmium(II)]-μ-cyanido-κ :-[dicyanidonickel(II)]-μ-cyanido-κ :].

In the title compound, [CdNi(CHN)(CN)] , the Cd and Ni atoms both lie on centres of inversion in space group 2/. The Cd atom is coordinated by two bidentate quinolin-8-amine ligands and by the N atoms of two cyano ligands, while the square planar Ni atom is coordinated by the C atoms of four cyano ligands. These units form a one-dimensional coordination polymer containing an (-NC-Ni-CN-Cd-) backbone, and the coordination polymer chains are linked into a three-dimensional array by a combination of N-H⋯N and C-H⋯N hydrogen bonds, augmented by a π-π stacking inter-action.