BaRhGe3 crystallizes in the tetragonal I4mm space group. Ba(1) is bonded in a 17-coordinate geometry to five equivalent Rh(1), four equivalent Ge(1), and eight equivalent Ge(2) atoms. Rh(1) is bonded in a 5-coordinate geometry to five equivalent Ba(1), one Ge(1), and four 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 four equivalent Ba(1), one Rh(1), and four equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to four equivalent Ba(1), two equivalent Rh(1), and two equivalent Ge(1) atoms.
BaRhGe3 crystallizes in the tetragonal I4mm space group. Ba(1) is bonded in a 17-coordinate geometry to five equivalent Rh(1), four equivalent Ge(1), and eight equivalent Ge(2) atoms. There are four shorter (3.57 Å) and one longer (3.60 Å) Ba(1)-Rh(1) bond length. All Ba(1)-Ge(1) bond lengths are 3.36 Å. There are four shorter (3.42 Å) and four longer (3.45 Å) Ba(1)-Ge(2) bond lengths. Rh(1) is bonded in a 5-coordinate geometry to five equivalent Ba(1), one Ge(1), and four equivalent Ge(2) atoms. The Rh(1)-Ge(1) bond length is 2.51 Å. All Rh(1)-Ge(2) bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Rh(1), and four equivalent Ge(2) atoms. All Ge(1)-Ge(2) bond lengths are 2.78 Å. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to four equivalent Ba(1), two equivalent Rh(1), and two equivalent Ge(1) atoms.