Ba3Sm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ba(1) is bonded to eight equivalent Ba(1) and four equivalent Sm(1) atoms to form BaBa8Sm4 cuboctahedra that share corners with twelve equivalent Ba(1)Ba8Sm4 cuboctahedra, edges with eight equivalent Sm(1)Ba12 cuboctahedra, edges with sixteen equivalent Ba(1)Ba8Sm4 cuboctahedra, faces with four equivalent Sm(1)Ba12 cuboctahedra, and faces with fourteen equivalent Ba(1)Ba8Sm4 cuboctahedra. Sm(1) is bonded to twelve equivalent Ba(1) atoms to form SmBa12 cuboctahedra that share corners with twelve equivalent Sm(1)Ba12 cuboctahedra, edges with twenty-four equivalent Ba(1)Ba8Sm4 cuboctahedra, faces with six equivalent Sm(1)Ba12 cuboctahedra, and faces with twelve equivalent Ba(1)Ba8Sm4 cuboctahedra.
Ba3Sm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ba(1) is bonded to eight equivalent Ba(1) and four equivalent Sm(1) atoms to form BaBa8Sm4 cuboctahedra that share corners with twelve equivalent Ba(1)Ba8Sm4 cuboctahedra, edges with eight equivalent Sm(1)Ba12 cuboctahedra, edges with sixteen equivalent Ba(1)Ba8Sm4 cuboctahedra, faces with four equivalent Sm(1)Ba12 cuboctahedra, and faces with fourteen equivalent Ba(1)Ba8Sm4 cuboctahedra. All Ba(1)-Ba(1) bond lengths are 4.22 Å. All Ba(1)-Sm(1) bond lengths are 4.22 Å. Sm(1) is bonded to twelve equivalent Ba(1) atoms to form SmBa12 cuboctahedra that share corners with twelve equivalent Sm(1)Ba12 cuboctahedra, edges with twenty-four equivalent Ba(1)Ba8Sm4 cuboctahedra, faces with six equivalent Sm(1)Ba12 cuboctahedra, and faces with twelve equivalent Ba(1)Ba8Sm4 cuboctahedra.