SmZr crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded to six equivalent Sm(1) and six equivalent Zr(1) atoms to form SmSm6Zr6 cuboctahedra that share corners with eighteen equivalent Sm(1)Sm6Zr6 cuboctahedra, edges with six equivalent Sm(1)Sm6Zr6 cuboctahedra, edges with twelve equivalent Zr(1)Sm6Zr6 cuboctahedra, faces with eight equivalent Sm(1)Sm6Zr6 cuboctahedra, and faces with twelve equivalent Zr(1)Sm6Zr6 cuboctahedra. Zr(1) is bonded to six equivalent Sm(1) and six equivalent Zr(1) atoms to form ZrSm6Zr6 cuboctahedra that share corners with eighteen equivalent Zr(1)Sm6Zr6 cuboctahedra, edges with six equivalent Zr(1)Sm6Zr6 cuboctahedra, edges with twelve equivalent Sm(1)Sm6Zr6 cuboctahedra, faces with eight equivalent Zr(1)Sm6Zr6 cuboctahedra, and faces with twelve equivalent Sm(1)Sm6Zr6 cuboctahedra.
SmZr crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded to six equivalent Sm(1) and six equivalent Zr(1) atoms to form SmSm6Zr6 cuboctahedra that share corners with eighteen equivalent Sm(1)Sm6Zr6 cuboctahedra, edges with six equivalent Sm(1)Sm6Zr6 cuboctahedra, edges with twelve equivalent Zr(1)Sm6Zr6 cuboctahedra, faces with eight equivalent Sm(1)Sm6Zr6 cuboctahedra, and faces with twelve equivalent Zr(1)Sm6Zr6 cuboctahedra. All Sm(1)-Sm(1) bond lengths are 3.40 Å. All Sm(1)-Zr(1) bond lengths are 3.39 Å. Zr(1) is bonded to six equivalent Sm(1) and six equivalent Zr(1) atoms to form ZrSm6Zr6 cuboctahedra that share corners with eighteen equivalent Zr(1)Sm6Zr6 cuboctahedra, edges with six equivalent Zr(1)Sm6Zr6 cuboctahedra, edges with twelve equivalent Sm(1)Sm6Zr6 cuboctahedra, faces with eight equivalent Zr(1)Sm6Zr6 cuboctahedra, and faces with twelve equivalent Sm(1)Sm6Zr6 cuboctahedra. All Zr(1)-Zr(1) bond lengths are 3.40 Å.