Os2Ge3 crystallizes in the tetragonal P-4c2 space group. There are three inequivalent Os sites. In the first Os site, Os(1) is bonded in a 6-coordinate geometry to two equivalent Ge(2) and four equivalent Ge(1) atoms. In the second Os site, Os(2) is bonded in a 6-coordinate geometry to two equivalent Ge(2) and four equivalent Ge(1) atoms. In the third Os site, Os(3) is bonded in a 8-coordinate geometry to four equivalent 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 4-coordinate geometry to one Os(2), one Os(3), and two equivalent Os(1) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to one Os(2), two equivalent Os(1), and two equivalent Os(3) atoms.
Os2Ge3 crystallizes in the tetragonal P-4c2 space group. There are three inequivalent Os sites. In the first Os site, Os(1) is bonded in a 6-coordinate geometry to two equivalent Ge(2) and four equivalent Ge(1) atoms. Both Os(1)-Ge(2) bond lengths are 2.44 Å. There are two shorter (2.47 Å) and two longer (2.62 Å) Os(1)-Ge(1) bond lengths. In the second Os site, Os(2) is bonded in a 6-coordinate geometry to two equivalent Ge(2) and four equivalent Ge(1) atoms. Both Os(2)-Ge(2) bond lengths are 2.69 Å. All Os(2)-Ge(1) bond lengths are 2.40 Å. In the third Os site, Os(3) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. All Os(3)-Ge(1) bond lengths are 2.51 Å. All Os(3)-Ge(2) bond lengths are 2.71 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 4-coordinate geometry to one Os(2), one Os(3), and two equivalent Os(1) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to one Os(2), two equivalent Os(1), and two equivalent Os(3) atoms.