CoNiO3 is Ilmenite structured and crystallizes in the trigonal R-3 space group. Co(1) is bonded to six equivalent O(1) atoms to form CoO6 octahedra that share corners with nine equivalent Ni(1)O6 octahedra, edges with three equivalent Co(1)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. Ni(1) is bonded to six equivalent O(1) atoms to form NiO6 octahedra that share corners with nine equivalent Co(1)O6 octahedra, edges with three equivalent Ni(1)O6 octahedra, and  a faceface with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. O(1) is bonded in a distorted see-saw-like geometry to two equivalent Co(1) and two equivalent Ni(1) atoms.
CoNiO3 is Ilmenite structured and crystallizes in the trigonal R-3 space group. Co(1) is bonded to six equivalent O(1) atoms to form CoO6 octahedra that share corners with nine equivalent Ni(1)O6 octahedra, edges with three equivalent Co(1)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. There are three shorter (1.87 Å) and three longer (1.90 Å) Co(1)-O(1) bond lengths. Ni(1) is bonded to six equivalent O(1) atoms to form NiO6 octahedra that share corners with nine equivalent Co(1)O6 octahedra, edges with three equivalent Ni(1)O6 octahedra, and  a faceface with one Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-60°. There are three shorter (1.92 Å) and three longer (2.01 Å) Ni(1)-O(1) bond lengths. O(1) is bonded in a distorted see-saw-like geometry to two equivalent Co(1) and two equivalent Ni(1) atoms.