Ho3Ru4Ge13 crystallizes in the cubic Pm-3n space group. Ho(1) is bonded in a 16-coordinate geometry to four equivalent Ru(1) and twelve equivalent Ge(2) atoms. Ru(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1) and six equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 6-coordinate geometry to three equivalent Ho(1), two equivalent Ru(1), one Ge(1), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a cuboctahedral geometry to twelve equivalent Ge(2) atoms.
Ho3Ru4Ge13 crystallizes in the cubic Pm-3n space group. Ho(1) is bonded in a 16-coordinate geometry to four equivalent Ru(1) and twelve equivalent Ge(2) atoms. All Ho(1)-Ru(1) bond lengths are 3.19 Å. There are eight shorter (3.16 Å) and four longer (3.21 Å) Ho(1)-Ge(2) bond lengths. Ru(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1) and six equivalent Ge(2) atoms. All Ru(1)-Ge(2) bond lengths are 2.49 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 6-coordinate geometry to three equivalent Ho(1), two equivalent Ru(1), one Ge(1), and one Ge(2) atom. The Ge(2)-Ge(1) bond length is 3.08 Å. The Ge(2)-Ge(2) bond length is 2.69 Å. In the second Ge site, Ge(1) is bonded in a cuboctahedral geometry to twelve equivalent Ge(2) atoms.