Co(NiN)2 crystallizes in the tetragonal I4/mmm space group. Co(1) is bonded in a linear geometry to two equivalent N(1) atoms. Ni(1) is bonded to five equivalent N(1) atoms to form a mixture of corner and edge-sharing NiN5 square pyramids. N(1) is bonded to one Co(1) and five equivalent Ni(1) atoms to form a mixture of corner and edge-sharing NCoNi5 octahedra. The corner-sharing octahedral tilt angles range from 0-5°.
Co(NiN)2 crystallizes in the tetragonal I4/mmm space group. Co(1) is bonded in a linear geometry to two equivalent N(1) atoms. Both Co(1)-N(1) bond lengths are 1.79 Å. Ni(1) is bonded to five equivalent N(1) atoms to form a mixture of corner and edge-sharing NiN5 square pyramids. There are four shorter (2.02 Å) and one longer (2.05 Å) Ni(1)-N(1) bond length. N(1) is bonded to one Co(1) and five equivalent Ni(1) atoms to form a mixture of corner and edge-sharing NCoNi5 octahedra. The corner-sharing octahedral tilt angles range from 0-5°.