PuLu3 is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. Pu(1) is bonded to four equivalent Lu(2) and eight equivalent Lu(1) atoms to form PuLu12 cuboctahedra that share corners with four equivalent Pu(1)Lu12 cuboctahedra, corners with eight equivalent Lu(2)Lu8Pu4 cuboctahedra, edges with eight equivalent Pu(1)Lu12 cuboctahedra, edges with sixteen equivalent Lu(1)Lu8Pu4 cuboctahedra, faces with four equivalent Pu(1)Lu12 cuboctahedra, faces with six equivalent Lu(2)Lu8Pu4 cuboctahedra, and faces with eight equivalent Lu(1)Lu8Pu4 cuboctahedra. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to four equivalent Pu(1), four equivalent Lu(1), and four equivalent Lu(2) atoms to form LuLu8Pu4 cuboctahedra that share corners with twelve equivalent Lu(1)Lu8Pu4 cuboctahedra, edges with eight equivalent Pu(1)Lu12 cuboctahedra, edges with eight equivalent Lu(1)Lu8Pu4 cuboctahedra, edges with eight equivalent Lu(2)Lu8Pu4 cuboctahedra, faces with four equivalent Pu(1)Lu12 cuboctahedra, faces with four equivalent Lu(2)Lu8Pu4 cuboctahedra, and faces with ten equivalent Lu(1)Lu8Pu4 cuboctahedra. In the second Lu site, Lu(2) is bonded to four equivalent Pu(1) and eight equivalent Lu(1) atoms to form LuLu8Pu4 cuboctahedra that share corners with four equivalent Lu(2)Lu8Pu4 cuboctahedra, corners with eight equivalent Pu(1)Lu12 cuboctahedra, edges with eight equivalent Lu(2)Lu8Pu4 cuboctahedra, edges with sixteen equivalent Lu(1)Lu8Pu4 cuboctahedra, faces with four equivalent Lu(2)Lu8Pu4 cuboctahedra, faces with six equivalent Pu(1)Lu12 cuboctahedra, and faces with eight equivalent Lu(1)Lu8Pu4 cuboctahedra.
PuLu3 is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. Pu(1) is bonded to four equivalent Lu(2) and eight equivalent Lu(1) atoms to form PuLu12 cuboctahedra that share corners with four equivalent Pu(1)Lu12 cuboctahedra, corners with eight equivalent Lu(2)Lu8Pu4 cuboctahedra, edges with eight equivalent Pu(1)Lu12 cuboctahedra, edges with sixteen equivalent Lu(1)Lu8Pu4 cuboctahedra, faces with four equivalent Pu(1)Lu12 cuboctahedra, faces with six equivalent Lu(2)Lu8Pu4 cuboctahedra, and faces with eight equivalent Lu(1)Lu8Pu4 cuboctahedra. All Pu(1)-Lu(2) bond lengths are 3.31 Å. All Pu(1)-Lu(1) bond lengths are 3.30 Å. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to four equivalent Pu(1), four equivalent Lu(1), and four equivalent Lu(2) atoms to form LuLu8Pu4 cuboctahedra that share corners with twelve equivalent Lu(1)Lu8Pu4 cuboctahedra, edges with eight equivalent Pu(1)Lu12 cuboctahedra, edges with eight equivalent Lu(1)Lu8Pu4 cuboctahedra, edges with eight equivalent Lu(2)Lu8Pu4 cuboctahedra, faces with four equivalent Pu(1)Lu12 cuboctahedra, faces with four equivalent Lu(2)Lu8Pu4 cuboctahedra, and faces with ten equivalent Lu(1)Lu8Pu4 cuboctahedra. All Lu(1)-Lu(1) bond lengths are 3.31 Å. All Lu(1)-Lu(2) bond lengths are 3.30 Å. In the second Lu site, Lu(2) is bonded to four equivalent Pu(1) and eight equivalent Lu(1) atoms to form LuLu8Pu4 cuboctahedra that share corners with four equivalent Lu(2)Lu8Pu4 cuboctahedra, corners with eight equivalent Pu(1)Lu12 cuboctahedra, edges with eight equivalent Lu(2)Lu8Pu4 cuboctahedra, edges with sixteen equivalent Lu(1)Lu8Pu4 cuboctahedra, faces with four equivalent Lu(2)Lu8Pu4 cuboctahedra, faces with six equivalent Pu(1)Lu12 cuboctahedra, and faces with eight equivalent Lu(1)Lu8Pu4 cuboctahedra.