Sm3Al crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded in a 12-coordinate geometry to eight equivalent Sm(1) and four equivalent Al(1) atoms. Al(1) is bonded to twelve equivalent Sm(1) atoms to form a mixture of corner and face-sharing AlSm12 cuboctahedra.
Sm3Al crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded in a 12-coordinate geometry to eight equivalent Sm(1) and four equivalent Al(1) atoms. There are a spread of Sm(1)-Sm(1) bond distances ranging from 3.27-3.75 Å. There are two shorter (3.25 Å) and two longer (3.51 Å) Sm(1)-Al(1) bond lengths. Al(1) is bonded to twelve equivalent Sm(1) atoms to form a mixture of corner and face-sharing AlSm12 cuboctahedra.