CoNi is alpha La-derived structured and crystallizes in the trigonal R-3m space group. Co(1) is bonded to six equivalent Co(1) and six equivalent Ni(1) atoms to form CoCo6Ni6 cuboctahedra that share corners with twelve equivalent Co(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Co(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Co6Ni6 cuboctahedra, faces with six equivalent Co(1)Co6Ni6 cuboctahedra, and faces with twelve equivalent Ni(1)Co6Ni6 cuboctahedra. Ni(1) is bonded to six equivalent Co(1) and six equivalent Ni(1) atoms to form NiCo6Ni6 cuboctahedra that share corners with twelve equivalent Ni(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Co(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Co6Ni6 cuboctahedra, faces with six equivalent Ni(1)Co6Ni6 cuboctahedra, and faces with twelve equivalent Co(1)Co6Ni6 cuboctahedra.
CoNi is alpha La-derived structured and crystallizes in the trigonal R-3m space group. Co(1) is bonded to six equivalent Co(1) and six equivalent Ni(1) atoms to form CoCo6Ni6 cuboctahedra that share corners with twelve equivalent Co(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Co(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Co6Ni6 cuboctahedra, faces with six equivalent Co(1)Co6Ni6 cuboctahedra, and faces with twelve equivalent Ni(1)Co6Ni6 cuboctahedra. All Co(1)-Co(1) bond lengths are 2.45 Å. All Co(1)-Ni(1) bond lengths are 2.48 Å. Ni(1) is bonded to six equivalent Co(1) and six equivalent Ni(1) atoms to form NiCo6Ni6 cuboctahedra that share corners with twelve equivalent Ni(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Co(1)Co6Ni6 cuboctahedra, edges with twelve equivalent Ni(1)Co6Ni6 cuboctahedra, faces with six equivalent Ni(1)Co6Ni6 cuboctahedra, and faces with twelve equivalent Co(1)Co6Ni6 cuboctahedra. All Ni(1)-Ni(1) bond lengths are 2.45 Å.