MgCd crystallizes in the hexagonal P-6m2 space group. Mg(1) is bonded to six equivalent Mg(1) and six equivalent Cd(1) atoms to form distorted MgMg6Cd6 cuboctahedra that share corners with eighteen equivalent Mg(1)Mg6Cd6 cuboctahedra, edges with six equivalent Mg(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Cd(1)Mg6Cd6 cuboctahedra, faces with eight equivalent Mg(1)Mg6Cd6 cuboctahedra, and faces with twelve equivalent Cd(1)Mg6Cd6 cuboctahedra. Cd(1) is bonded to six equivalent Mg(1) and six equivalent Cd(1) atoms to form distorted CdMg6Cd6 cuboctahedra that share corners with eighteen equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with six equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Mg(1)Mg6Cd6 cuboctahedra, faces with eight equivalent Cd(1)Mg6Cd6 cuboctahedra, and faces with twelve equivalent Mg(1)Mg6Cd6 cuboctahedra.
MgCd crystallizes in the hexagonal P-6m2 space group. Mg(1) is bonded to six equivalent Mg(1) and six equivalent Cd(1) atoms to form distorted MgMg6Cd6 cuboctahedra that share corners with eighteen equivalent Mg(1)Mg6Cd6 cuboctahedra, edges with six equivalent Mg(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Cd(1)Mg6Cd6 cuboctahedra, faces with eight equivalent Mg(1)Mg6Cd6 cuboctahedra, and faces with twelve equivalent Cd(1)Mg6Cd6 cuboctahedra. All Mg(1)-Mg(1) bond lengths are 3.17 Å. All Mg(1)-Cd(1) bond lengths are 3.07 Å. Cd(1) is bonded to six equivalent Mg(1) and six equivalent Cd(1) atoms to form distorted CdMg6Cd6 cuboctahedra that share corners with eighteen equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with six equivalent Cd(1)Mg6Cd6 cuboctahedra, edges with twelve equivalent Mg(1)Mg6Cd6 cuboctahedra, faces with eight equivalent Cd(1)Mg6Cd6 cuboctahedra, and faces with twelve equivalent Mg(1)Mg6Cd6 cuboctahedra. All Cd(1)-Cd(1) bond lengths are 3.17 Å.