SmCe is alpha Samarium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to six equivalent Sm(1) and six equivalent Ce(1) atoms to form SmCe6Sm6 cuboctahedra that share corners with eighteen equivalent Sm(1)Ce6Sm6 cuboctahedra, edges with six equivalent Sm(1)Ce6Sm6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra, faces with eight equivalent Sm(1)Ce6Sm6 cuboctahedra, and faces with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra. Ce(1) is bonded to six equivalent Sm(1) and six equivalent Ce(1) atoms to form CeCe6Sm6 cuboctahedra that share corners with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra, edges with twelve equivalent Sm(1)Ce6Sm6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra, faces with six equivalent Ce(1)Ce6Sm6 cuboctahedra, and faces with twelve equivalent Sm(1)Ce6Sm6 cuboctahedra.
SmCe is alpha Samarium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to six equivalent Sm(1) and six equivalent Ce(1) atoms to form SmCe6Sm6 cuboctahedra that share corners with eighteen equivalent Sm(1)Ce6Sm6 cuboctahedra, edges with six equivalent Sm(1)Ce6Sm6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra, faces with eight equivalent Sm(1)Ce6Sm6 cuboctahedra, and faces with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra. All Sm(1)-Sm(1) bond lengths are 3.51 Å. All Sm(1)-Ce(1) bond lengths are 3.56 Å. Ce(1) is bonded to six equivalent Sm(1) and six equivalent Ce(1) atoms to form CeCe6Sm6 cuboctahedra that share corners with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra, edges with twelve equivalent Sm(1)Ce6Sm6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Sm6 cuboctahedra, faces with six equivalent Ce(1)Ce6Sm6 cuboctahedra, and faces with twelve equivalent Sm(1)Ce6Sm6 cuboctahedra. All Ce(1)-Ce(1) bond lengths are 3.51 Å.