HfCd crystallizes in the tetragonal P4/nmm 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 Hf(1)Hf8Cd4 cuboctahedra, corners with eight equivalent Cd(1)Hf4Cd8 cuboctahedra, edges with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with sixteen equivalent Cd(1)Hf4Cd8 cuboctahedra, faces with six equivalent Cd(1)Hf4Cd8 cuboctahedra, and faces with twelve equivalent Hf(1)Hf8Cd4 cuboctahedra. Cd(1) is bonded to four equivalent Hf(1) and eight equivalent Cd(1) atoms to form CdHf4Cd8 cuboctahedra that share corners with four equivalent Cd(1)Hf4Cd8 cuboctahedra, corners with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with eight equivalent Cd(1)Hf4Cd8 cuboctahedra, edges with sixteen equivalent Hf(1)Hf8Cd4 cuboctahedra, faces with six equivalent Hf(1)Hf8Cd4 cuboctahedra, and faces with twelve equivalent Cd(1)Hf4Cd8 cuboctahedra.
HfCd crystallizes in the tetragonal P4/nmm 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 Hf(1)Hf8Cd4 cuboctahedra, corners with eight equivalent Cd(1)Hf4Cd8 cuboctahedra, edges with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with sixteen equivalent Cd(1)Hf4Cd8 cuboctahedra, faces with six equivalent Cd(1)Hf4Cd8 cuboctahedra, and faces with twelve 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 four equivalent Hf(1) and eight equivalent Cd(1) atoms to form CdHf4Cd8 cuboctahedra that share corners with four equivalent Cd(1)Hf4Cd8 cuboctahedra, corners with eight equivalent Hf(1)Hf8Cd4 cuboctahedra, edges with eight equivalent Cd(1)Hf4Cd8 cuboctahedra, edges with sixteen equivalent Hf(1)Hf8Cd4 cuboctahedra, faces with six equivalent Hf(1)Hf8Cd4 cuboctahedra, and faces with twelve equivalent Cd(1)Hf4Cd8 cuboctahedra. There are four shorter (3.05 Å) and four longer (3.11 Å) Cd(1)-Cd(1) bond lengths.