Lu11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one Ge(1), one Ge(2), one Ge(4), and four equivalent Ge(5) atoms to form a mixture of distorted corner, edge, and face-sharing LuGe7 pentagonal bipyramids. In the second Lu site, Lu(2) is bonded in a 7-coordinate geometry to one Ge(3), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms. In the third Lu site, Lu(3) is bonded in a 9-coordinate geometry to one Ge(2), four equivalent Ge(3), and four equivalent Ge(5) atoms. In the fourth Lu site, Lu(4) is bonded in a 7-coordinate geometry to one Ge(4), two equivalent Ge(1), two equivalent Ge(3), and two equivalent Ge(5) atoms. There are five inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), and four equivalent Lu(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Lu(3), four equivalent Lu(1), and four equivalent Lu(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Lu(2), two equivalent Lu(3), four equivalent Lu(4), and two equivalent Ge(3) atoms. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to four equivalent Lu(1) and four equivalent Lu(4) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Lu(2), one Lu(3), two equivalent Lu(4), four equivalent Lu(1), and one Ge(5) atom.
Lu11Ge10 is delta Molybdenum Boride-like structured and crystallizes in the tetragonal I4/mmm space group. There are four inequivalent Lu sites. In the first Lu site, Lu(1) is bonded to one Ge(1), one Ge(2), one Ge(4), and four equivalent Ge(5) atoms to form a mixture of distorted corner, edge, and face-sharing LuGe7 pentagonal bipyramids. The Lu(1)-Ge(1) bond length is 3.22 Å. The Lu(1)-Ge(2) bond length is 2.92 Å. The Lu(1)-Ge(4) bond length is 2.81 Å. There are two shorter (3.06 Å) and two longer (3.14 Å) Lu(1)-Ge(5) bond lengths. In the second Lu site, Lu(2) is bonded in a 7-coordinate geometry to one Ge(3), two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(5) atoms. The Lu(2)-Ge(3) bond length is 3.03 Å. Both Lu(2)-Ge(1) bond lengths are 2.68 Å. Both Lu(2)-Ge(2) bond lengths are 3.25 Å. Both Lu(2)-Ge(5) bond lengths are 3.35 Å. In the third Lu site, Lu(3) is bonded in a 9-coordinate geometry to one Ge(2), four equivalent Ge(3), and four equivalent Ge(5) atoms. The Lu(3)-Ge(2) bond length is 3.55 Å. All Lu(3)-Ge(3) bond lengths are 3.13 Å. All Lu(3)-Ge(5) bond lengths are 3.15 Å. In the fourth Lu site, Lu(4) is bonded in a 7-coordinate geometry to one Ge(4), two equivalent Ge(1), two equivalent Ge(3), and two equivalent Ge(5) atoms. The Lu(4)-Ge(4) bond length is 3.00 Å. Both Lu(4)-Ge(1) bond lengths are 2.90 Å. Both Lu(4)-Ge(3) bond lengths are 3.00 Å. Both Lu(4)-Ge(5) bond lengths are 2.84 Å. There are five inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), and four equivalent Lu(4) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Lu(3), four equivalent Lu(1), and four equivalent Lu(2) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Lu(2), two equivalent Lu(3), four equivalent Lu(4), and two equivalent Ge(3) atoms. Both Ge(3)-Ge(3) bond lengths are 2.59 Å. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to four equivalent Lu(1) and four equivalent Lu(4) atoms. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Lu(2), one Lu(3), two equivalent Lu(4), four equivalent Lu(1), and one Ge(5) atom. The Ge(5)-Ge(5) bond length is 2.54 Å.