Lu6FeSb2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 4-coordinate geometry to two equivalent Fe(1) and two equivalent Sb(1) atoms. In the second Lu site, Lu(2) is bonded in a 5-coordinate geometry to one Fe(1) and four equivalent Sb(1) atoms. Fe(1) is bonded in a 9-coordinate geometry to three equivalent Lu(2) and six equivalent Lu(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to three equivalent Lu(1) and six equivalent Lu(2) atoms.
Lu6FeSb2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 4-coordinate geometry to two equivalent Fe(1) and two equivalent Sb(1) atoms. Both Lu(1)-Fe(1) bond lengths are 2.78 Å. Both Lu(1)-Sb(1) bond lengths are 3.12 Å. In the second Lu site, Lu(2) is bonded in a 5-coordinate geometry to one Fe(1) and four equivalent Sb(1) atoms. The Lu(2)-Fe(1) bond length is 3.13 Å. All Lu(2)-Sb(1) bond lengths are 3.20 Å. Fe(1) is bonded in a 9-coordinate geometry to three equivalent Lu(2) and six equivalent Lu(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to three equivalent Lu(1) and six equivalent Lu(2) atoms.