Hf2Cd crystallizes in the tetragonal I4/mmm space group. Hf(1) is bonded to eight equivalent Hf(1) and four equivalent Cd(1) atoms to form HfHf8Cd4 cuboctahedra that share corners with four equivalent Cd(1)Hf8Cd4 cuboctahedra, corners with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with twelve equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with twelve equivalent Cd(1)Hf8Cd4 cuboctahedra, faces with five equivalent Cd(1)Hf8Cd4 cuboctahedra, and faces with thirteen equivalent Hf(1)Hf8Cd4 cuboctahedra. Cd(1) is bonded to eight equivalent Hf(1) and four equivalent Cd(1) atoms to form CdHf8Cd4 cuboctahedra that share corners with four equivalent Cd(1)Hf8Cd4 cuboctahedra, corners with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with twenty-four equivalent Hf(1)Hf8Cd4 cuboctahedra, faces with eight equivalent Cd(1)Hf8Cd4 cuboctahedra, and faces with ten equivalent Hf(1)Hf8Cd4 cuboctahedra.
Hf2Cd crystallizes in the tetragonal I4/mmm space group. Hf(1) is bonded to eight equivalent Hf(1) and four equivalent Cd(1) atoms to form HfHf8Cd4 cuboctahedra that share corners with four equivalent Cd(1)Hf8Cd4 cuboctahedra, corners with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with twelve equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with twelve equivalent Cd(1)Hf8Cd4 cuboctahedra, faces with five equivalent Cd(1)Hf8Cd4 cuboctahedra, and faces with thirteen equivalent Hf(1)Hf8Cd4 cuboctahedra. There are four shorter (3.05 Å) and four longer (3.06 Å) Hf(1)-Hf(1) bond lengths. All Hf(1)-Cd(1) bond lengths are 3.21 Å. Cd(1) is bonded to eight equivalent Hf(1) and four equivalent Cd(1) atoms to form CdHf8Cd4 cuboctahedra that share corners with four equivalent Cd(1)Hf8Cd4 cuboctahedra, corners with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with twenty-four equivalent Hf(1)Hf8Cd4 cuboctahedra, faces with eight equivalent Cd(1)Hf8Cd4 cuboctahedra, and faces with ten equivalent Hf(1)Hf8Cd4 cuboctahedra. All Cd(1)-Cd(1) bond lengths are 3.06 Å.