Ho5In3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 6-coordinate geometry to two equivalent In(2) and four equivalent In(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to two equivalent Ho(2) and four equivalent In(1) atoms. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to two equivalent Ho(2) and eight equivalent Ho(1) atoms. In the second In site, In(2) is bonded in a 10-coordinate geometry to eight equivalent Ho(1) and two equivalent In(2) atoms.
Ho5In3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 6-coordinate geometry to two equivalent In(2) and four equivalent In(1) atoms. Both Ho(1)-In(2) bond lengths are 3.22 Å. There are a spread of Ho(1)-In(1) bond distances ranging from 3.19-3.53 Å. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to two equivalent Ho(2) and four equivalent In(1) atoms. Both Ho(2)-Ho(2) bond lengths are 3.06 Å. All Ho(2)-In(1) bond lengths are 3.18 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to two equivalent Ho(2) and eight equivalent Ho(1) atoms. In the second In site, In(2) is bonded in a 10-coordinate geometry to eight equivalent Ho(1) and two equivalent In(2) atoms. Both In(2)-In(2) bond lengths are 3.06 Å.