Materials Data on Sm3Lu by Materials Project
LuSm3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Lu is bonded to twelve equivalent Sm atoms to form LuSm12 cuboctahedra that share corners with six equivalent LuSm12 cuboctahedra, corners with twelve equivalent SmSm8Lu4 cuboctahedra, edges with eighteen equivalent SmSm8Lu4 cuboctahedra, faces with eight equivalent LuSm12 cuboctahedra, and faces with twelve equivalent SmSm8Lu4 cuboctahedra. There are six shorter (3.58 Å) and six longer (3.63 Å) Lu–Sm bond lengths. Sm is bonded to four equivalent Lu and eight equivalent Sm atoms to form SmSm8Lu4 cuboctahedra that share corners with four equivalent LuSm12 cuboctahedra, corners with fourteen equivalent SmSm8Lu4 cuboctahedra, edges with six equivalent LuSm12 cuboctahedra, edges with twelve equivalent SmSm8Lu4 cuboctahedra, faces with four equivalent LuSm12 cuboctahedra, and faces with sixteen equivalent SmSm8Lu4 cuboctahedra. There are six shorter (3.60 Å) and two longer (3.66 Å) Sm–Sm bond lengths.