Al3Sm crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to twelve equivalent Al(1) atoms to form a mixture of distorted corner and face-sharing SmAl12 cuboctahedra. Al(1) is bonded in a 10-coordinate geometry to four equivalent Sm(1) and six equivalent Al(1) atoms.
Al3Sm crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to twelve equivalent Al(1) atoms to form a mixture of distorted corner and face-sharing SmAl12 cuboctahedra. There are six shorter (3.13 Å) and six longer (3.22 Å) Sm(1)-Al(1) bond lengths. Al(1) is bonded in a 10-coordinate geometry to four equivalent Sm(1) and six equivalent Al(1) atoms. There are two shorter (2.73 Å) and four longer (2.78 Å) Al(1)-Al(1) bond lengths.