Ba3Ge5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one Ge(2), four equivalent Ge(1), and four equivalent Ge(3) atoms. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to two equivalent Ge(2), four equivalent Ge(1), and four equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Ba(1), four equivalent Ba(2), one Ge(2), and two equivalent Ge(3) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Ba(1), four equivalent Ba(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ba(1), four equivalent Ba(2), one Ge(2), and two equivalent Ge(1) atoms.
Ba3Ge5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one Ge(2), four equivalent Ge(1), and four equivalent Ge(3) atoms. The Ba(1)-Ge(2) bond length is 3.64 Å. There are two shorter (3.54 Å) and two longer (3.71 Å) Ba(1)-Ge(1) bond lengths. There are two shorter (3.40 Å) and two longer (3.63 Å) Ba(1)-Ge(3) bond lengths. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to two equivalent Ge(2), four equivalent Ge(1), and four equivalent Ge(3) atoms. Both Ba(2)-Ge(2) bond lengths are 3.46 Å. There are two shorter (3.41 Å) and two longer (3.62 Å) Ba(2)-Ge(1) bond lengths. There are two shorter (3.46 Å) and two longer (3.59 Å) Ba(2)-Ge(3) bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Ba(1), four equivalent Ba(2), one Ge(2), and two equivalent Ge(3) atoms. The Ge(1)-Ge(2) bond length is 2.62 Å. Both Ge(1)-Ge(3) bond lengths are 2.61 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to one Ba(1), four equivalent Ba(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. Both Ge(2)-Ge(3) bond lengths are 2.66 Å. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ba(1), four equivalent Ba(2), one Ge(2), and two equivalent Ge(1) atoms.