SmY3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Sm(1) is bonded to twelve equivalent Y(1) atoms to form SmY12 cuboctahedra that share corners with twelve equivalent Sm(1)Y12 cuboctahedra, edges with twenty-four equivalent Y(1)Sm4Y8 cuboctahedra, faces with six equivalent Sm(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Sm4Y8 cuboctahedra. Y(1) is bonded to four equivalent Sm(1) and eight equivalent Y(1) atoms to form YSm4Y8 cuboctahedra that share corners with twelve equivalent Y(1)Sm4Y8 cuboctahedra, edges with eight equivalent Sm(1)Y12 cuboctahedra, edges with sixteen equivalent Y(1)Sm4Y8 cuboctahedra, faces with four equivalent Sm(1)Y12 cuboctahedra, and faces with fourteen equivalent Y(1)Sm4Y8 cuboctahedra.
SmY3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Sm(1) is bonded to twelve equivalent Y(1) atoms to form SmY12 cuboctahedra that share corners with twelve equivalent Sm(1)Y12 cuboctahedra, edges with twenty-four equivalent Y(1)Sm4Y8 cuboctahedra, faces with six equivalent Sm(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Sm4Y8 cuboctahedra. All Sm(1)-Y(1) bond lengths are 3.61 Å. Y(1) is bonded to four equivalent Sm(1) and eight equivalent Y(1) atoms to form YSm4Y8 cuboctahedra that share corners with twelve equivalent Y(1)Sm4Y8 cuboctahedra, edges with eight equivalent Sm(1)Y12 cuboctahedra, edges with sixteen equivalent Y(1)Sm4Y8 cuboctahedra, faces with four equivalent Sm(1)Y12 cuboctahedra, and faces with fourteen equivalent Y(1)Sm4Y8 cuboctahedra. All Y(1)-Y(1) bond lengths are 3.61 Å.