Ho5(Ir2Ge5)2 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1), four equivalent Ge(2), and eight equivalent Ge(1) atoms. In the second Ho site, Ho(2) is bonded in a 12-coordinate geometry to four equivalent Ir(1), two equivalent Ge(1), two equivalent Ge(3), and four equivalent Ge(2) atoms. In the third Ho site, Ho(3) is bonded in a 6-coordinate geometry to two equivalent Ir(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. Ir(1) is bonded in a 9-coordinate geometry to one Ho(1), one Ho(3), two equivalent Ho(2), one Ge(3), two equivalent Ge(1), and two equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Ho(2), two equivalent Ho(1), two equivalent Ir(1), and two equivalent Ge(1) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to one Ho(1), one Ho(3), two equivalent Ho(2), and two equivalent Ir(1) atoms. In the third Ge site, Ge(3) is bonded in a 6-coordinate geometry to two equivalent Ho(2), two equivalent Ho(3), and two equivalent Ir(1) atoms.
Ho5(Ir2Ge5)2 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 16-coordinate geometry to four equivalent Ir(1), four equivalent Ge(2), and eight equivalent Ge(1) atoms. All Ho(1)-Ir(1) bond lengths are 3.21 Å. All Ho(1)-Ge(2) bond lengths are 3.36 Å. All Ho(1)-Ge(1) bond lengths are 3.01 Å. In the second Ho site, Ho(2) is bonded in a 12-coordinate geometry to four equivalent Ir(1), two equivalent Ge(1), two equivalent Ge(3), and four equivalent Ge(2) atoms. All Ho(2)-Ir(1) bond lengths are 3.21 Å. Both Ho(2)-Ge(1) bond lengths are 3.26 Å. Both Ho(2)-Ge(3) bond lengths are 2.94 Å. All Ho(2)-Ge(2) bond lengths are 3.13 Å. In the third Ho site, Ho(3) is bonded in a 6-coordinate geometry to two equivalent Ir(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. Both Ho(3)-Ir(1) bond lengths are 3.16 Å. Both Ho(3)-Ge(2) bond lengths are 2.82 Å. Both Ho(3)-Ge(3) bond lengths are 2.78 Å. Ir(1) is bonded in a 9-coordinate geometry to one Ho(1), one Ho(3), two equivalent Ho(2), one Ge(3), two equivalent Ge(1), and two equivalent Ge(2) atoms. The Ir(1)-Ge(3) bond length is 2.47 Å. Both Ir(1)-Ge(1) bond lengths are 2.46 Å. There is one shorter (2.49 Å) and one longer (2.54 Å) Ir(1)-Ge(2) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 7-coordinate geometry to one Ho(2), two equivalent Ho(1), two equivalent Ir(1), and two equivalent Ge(1) atoms. Both Ge(1)-Ge(1) bond lengths are 2.94 Å. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to one Ho(1), one Ho(3), two equivalent Ho(2), and two equivalent Ir(1) atoms. In the third Ge site, Ge(3) is bonded in a 6-coordinate geometry to two equivalent Ho(2), two equivalent Ho(3), and two equivalent Ir(1) atoms.