Materials Data on Sm3Al by Materials Project
Sm3Al is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sm is bonded to eight equivalent Sm and four equivalent Al atoms to form distorted SmSm8Al4 cuboctahedra that share corners with twelve equivalent SmSm8Al4 cuboctahedra, edges with eight equivalent AlSm12 cuboctahedra, edges with sixteen equivalent SmSm8Al4 cuboctahedra, faces with four equivalent AlSm12 cuboctahedra, and faces with fourteen equivalent SmSm8Al4 cuboctahedra. All Sm–Sm bond lengths are 3.43 Å. All Sm–Al bond lengths are 3.43 Å. Al is bonded to twelve equivalent Sm atoms to form AlSm12 cuboctahedra that share corners with twelve equivalent AlSm12 cuboctahedra, edges with twenty-four equivalent SmSm8Al4 cuboctahedra, faces with six equivalent AlSm12 cuboctahedra, and faces with twelve equivalent SmSm8Al4 cuboctahedra.