Ho6FeSb2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 4-coordinate geometry to two equivalent Fe(1) and two equivalent Sb(1) atoms. In the second Ho site, Ho(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 Ho(2) and six equivalent Ho(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1) and six equivalent Ho(2) atoms.
Ho6FeSb2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 4-coordinate geometry to two equivalent Fe(1) and two equivalent Sb(1) atoms. Both Ho(1)-Fe(1) bond lengths are 2.83 Å. Both Ho(1)-Sb(1) bond lengths are 3.19 Å. In the second Ho site, Ho(2) is bonded in a 5-coordinate geometry to one Fe(1) and four equivalent Sb(1) atoms. The Ho(2)-Fe(1) bond length is 3.26 Å. All Ho(2)-Sb(1) bond lengths are 3.25 Å. Fe(1) is bonded in a 9-coordinate geometry to three equivalent Ho(2) and six equivalent Ho(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1) and six equivalent Ho(2) atoms.