Lu6Pb5 crystallizes in the monoclinic C2/c space group. There are three inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 6-coordinate geometry to two equivalent Pb(3) and four equivalent Pb(1) atoms. In the second Lu site, Lu(2) is bonded to one Pb(1), two equivalent Pb(2), and four equivalent Pb(3) atoms to form a mixture of distorted corner, face, and edge-sharing LuPb7 pentagonal bipyramids. In the third Lu site, Lu(3) is bonded to one Pb(3), two equivalent Pb(2), and four equivalent Pb(1) atoms to form a mixture of distorted corner, face, and edge-sharing LuPb7 pentagonal bipyramids. There are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 9-coordinate geometry to one Lu(2), four equivalent Lu(1), and four equivalent Lu(3) atoms. In the second Pb site, Pb(2) is bonded in a 8-coordinate geometry to four equivalent Lu(2) and four equivalent Lu(3) atoms. In the third Pb site, Pb(3) is bonded in a 7-coordinate geometry to one Lu(3), two equivalent Lu(1), and four equivalent Lu(2) atoms.
Lu6Pb5 crystallizes in the monoclinic C2/c space group. There are three inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 6-coordinate geometry to two equivalent Pb(3) and four equivalent Pb(1) atoms. Both Lu(1)-Pb(3) bond lengths are 3.02 Å. There are two shorter (3.13 Å) and two longer (3.24 Å) Lu(1)-Pb(1) bond lengths. In the second Lu site, Lu(2) is bonded to one Pb(1), two equivalent Pb(2), and four equivalent Pb(3) atoms to form a mixture of distorted corner, face, and edge-sharing LuPb7 pentagonal bipyramids. The Lu(2)-Pb(1) bond length is 3.02 Å. There is one shorter (3.17 Å) and one longer (3.18 Å) Lu(2)-Pb(2) bond length. There are a spread of Lu(2)-Pb(3) bond distances ranging from 2.97-3.48 Å. In the third Lu site, Lu(3) is bonded to one Pb(3), two equivalent Pb(2), and four equivalent Pb(1) atoms to form a mixture of distorted corner, face, and edge-sharing LuPb7 pentagonal bipyramids. The Lu(3)-Pb(3) bond length is 2.94 Å. Both Lu(3)-Pb(2) bond lengths are 3.42 Å. There are a spread of Lu(3)-Pb(1) bond distances ranging from 3.11-3.57 Å. There are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 9-coordinate geometry to one Lu(2), four equivalent Lu(1), and four equivalent Lu(3) atoms. In the second Pb site, Pb(2) is bonded in a 8-coordinate geometry to four equivalent Lu(2) and four equivalent Lu(3) atoms. In the third Pb site, Pb(3) is bonded in a 7-coordinate geometry to one Lu(3), two equivalent Lu(1), and four equivalent Lu(2) atoms.