Ho3Ru2Ge3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 9-coordinate geometry to four equivalent Ru(1), two equivalent Ge(2), and three equivalent Ge(1) atoms. In the second Ho site, Ho(2) is bonded in a 10-coordinate geometry to four equivalent Ru(1), two equivalent Ge(1), and five equivalent Ge(2) atoms. Ru(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), four equivalent Ho(2), one Ge(1), and three equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), four equivalent Ho(2), and two equivalent Ru(1) atoms. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to one Ho(1), five equivalent Ho(2), three equivalent Ru(1), and one Ge(2) atom.
Ho3Ru2Ge3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 9-coordinate geometry to four equivalent Ru(1), two equivalent Ge(2), and three equivalent Ge(1) atoms. All Ho(1)-Ru(1) bond lengths are 3.23 Å. Both Ho(1)-Ge(2) bond lengths are 2.92 Å. There are two shorter (2.94 Å) and one longer (3.34 Å) Ho(1)-Ge(1) bond length. In the second Ho site, Ho(2) is bonded in a 10-coordinate geometry to four equivalent Ru(1), two equivalent Ge(1), and five equivalent Ge(2) atoms. There are a spread of Ho(2)-Ru(1) bond distances ranging from 3.06-3.18 Å. Both Ho(2)-Ge(1) bond lengths are 2.99 Å. There are a spread of Ho(2)-Ge(2) bond distances ranging from 3.03-3.42 Å. Ru(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), four equivalent Ho(2), one Ge(1), and three equivalent Ge(2) atoms. The Ru(1)-Ge(1) bond length is 2.67 Å. There are two shorter (2.43 Å) and one longer (2.50 Å) Ru(1)-Ge(2) bond length. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), four equivalent Ho(2), and two equivalent Ru(1) atoms. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to one Ho(1), five equivalent Ho(2), three equivalent Ru(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.75 Å.