Lu is alpha Samarium structured and crystallizes in the trigonal R-3m space group. There are four inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to six equivalent Lu(1) and six equivalent Lu(2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. In the second Lu site, Lu(2) is bonded to three equivalent Lu(1) and nine Lu(2,2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. In the third Lu site, Lu(2) is bonded to three equivalent Lu(1) and nine Lu(2,2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. In the fourth Lu site, Lu(2) is bonded to three equivalent Lu(1) and nine Lu(2,2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra.
Lu is alpha Samarium structured and crystallizes in the trigonal R-3m space group. There are four inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to six equivalent Lu(1) and six equivalent Lu(2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. All Lu(1)-Lu(1) bond lengths are 3.48 Å. All Lu(1)-Lu(2) bond lengths are 3.48 Å. In the second Lu site, Lu(2) is bonded to three equivalent Lu(1) and nine Lu(2,2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. There are three shorter (3.45 Å) and six longer (3.48 Å) Lu(2)-Lu(2,2) bond lengths. In the third Lu site, Lu(2) is bonded to three equivalent Lu(1) and nine Lu(2,2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. All Lu(2)-Lu(1) bond lengths are 3.48 Å. All Lu(2)-Lu(2) bond lengths are 3.48 Å. In the fourth Lu site, Lu(2) is bonded to three equivalent Lu(1) and nine Lu(2,2) atoms to form a mixture of face, edge, and corner-sharing LuLu12 cuboctahedra. All Lu(2)-Lu(1) bond lengths are 3.48 Å. There are three shorter (3.45 Å) and six longer (3.48 Å) Lu(2)-Lu(2,2) bond lengths.