RhGe4 crystallizes in the trigonal P3_121 space group. Rh(1) is bonded in a 8-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and four equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 2-coordinate geometry to two equivalent Rh(1) atoms. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to two equivalent Rh(1) and two equivalent Ge(3) atoms. In the third Ge site, Ge(3) is bonded in a 2-coordinate geometry to two equivalent Rh(1) and one Ge(2) atom.
RhGe4 crystallizes in the trigonal P3_121 space group. Rh(1) is bonded in a 8-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and four equivalent Ge(3) atoms. Both Rh(1)-Ge(1) bond lengths are 2.58 Å. Both Rh(1)-Ge(2) bond lengths are 2.58 Å. There are two shorter (2.52 Å) and two longer (2.53 Å) Rh(1)-Ge(3) bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 2-coordinate geometry to two equivalent Rh(1) atoms. In the second Ge site, Ge(2) is bonded in a 4-coordinate geometry to two equivalent Rh(1) and two equivalent Ge(3) atoms. Both Ge(2)-Ge(3) bond lengths are 2.57 Å. In the third Ge site, Ge(3) is bonded in a 2-coordinate geometry to two equivalent Rh(1) and one Ge(2) atom.