PtNi crystallizes in the trigonal R-3m space group. Pt(1) is bonded to six equivalent Pt(1) and six equivalent Ni(1) atoms to form distorted PtNi6Pt6 cuboctahedra that share corners with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra, faces with six equivalent Pt(1)Ni6Pt6 cuboctahedra, and faces with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra. Ni(1) is bonded to six equivalent Pt(1) and six equivalent Ni(1) atoms to form distorted NiNi6Pt6 cuboctahedra that share corners with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra, faces with six equivalent Ni(1)Ni6Pt6 cuboctahedra, and faces with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra.
PtNi crystallizes in the trigonal R-3m space group. Pt(1) is bonded to six equivalent Pt(1) and six equivalent Ni(1) atoms to form distorted PtNi6Pt6 cuboctahedra that share corners with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra, faces with six equivalent Pt(1)Ni6Pt6 cuboctahedra, and faces with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra. All Pt(1)-Pt(1) bond lengths are 2.71 Å. All Pt(1)-Ni(1) bond lengths are 2.63 Å. Ni(1) is bonded to six equivalent Pt(1) and six equivalent Ni(1) atoms to form distorted NiNi6Pt6 cuboctahedra that share corners with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra, edges with twelve equivalent Ni(1)Ni6Pt6 cuboctahedra, faces with six equivalent Ni(1)Ni6Pt6 cuboctahedra, and faces with twelve equivalent Pt(1)Ni6Pt6 cuboctahedra. All Ni(1)-Ni(1) bond lengths are 2.71 Å.