Co3Ni is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Co(1) is bonded to eight equivalent Co(1) and four equivalent Ni(1) atoms to form CoCo8Ni4 cuboctahedra that share corners with twelve equivalent Co(1)Co8Ni4 cuboctahedra, edges with eight equivalent Ni(1)Co12 cuboctahedra, edges with sixteen equivalent Co(1)Co8Ni4 cuboctahedra, faces with four equivalent Ni(1)Co12 cuboctahedra, and faces with fourteen equivalent Co(1)Co8Ni4 cuboctahedra. Ni(1) is bonded to twelve equivalent Co(1) atoms to form NiCo12 cuboctahedra that share corners with twelve equivalent Ni(1)Co12 cuboctahedra, edges with twenty-four equivalent Co(1)Co8Ni4 cuboctahedra, faces with six equivalent Ni(1)Co12 cuboctahedra, and faces with twelve equivalent Co(1)Co8Ni4 cuboctahedra.
Co3Ni is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Co(1) is bonded to eight equivalent Co(1) and four equivalent Ni(1) atoms to form CoCo8Ni4 cuboctahedra that share corners with twelve equivalent Co(1)Co8Ni4 cuboctahedra, edges with eight equivalent Ni(1)Co12 cuboctahedra, edges with sixteen equivalent Co(1)Co8Ni4 cuboctahedra, faces with four equivalent Ni(1)Co12 cuboctahedra, and faces with fourteen equivalent Co(1)Co8Ni4 cuboctahedra. All Co(1)-Co(1) bond lengths are 2.47 Å. All Co(1)-Ni(1) bond lengths are 2.47 Å. Ni(1) is bonded to twelve equivalent Co(1) atoms to form NiCo12 cuboctahedra that share corners with twelve equivalent Ni(1)Co12 cuboctahedra, edges with twenty-four equivalent Co(1)Co8Ni4 cuboctahedra, faces with six equivalent Ni(1)Co12 cuboctahedra, and faces with twelve equivalent Co(1)Co8Ni4 cuboctahedra.