OsGa3 crystallizes in the tetragonal P4_2/mnm space group. Os(1) is bonded in a 8-coordinate geometry to two equivalent Ga(2) and six equivalent Ga(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 3-coordinate geometry to three equivalent Os(1) atoms. In the second Ga site, Ga(2) is bonded in a linear geometry to two equivalent Os(1) atoms.
OsGa3 crystallizes in the tetragonal P4_2/mnm space group. Os(1) is bonded in a 8-coordinate geometry to two equivalent Ga(2) and six equivalent Ga(1) atoms. Both Os(1)-Ga(2) bond lengths are 2.43 Å. There are two shorter (2.48 Å) and four longer (2.59 Å) Os(1)-Ga(1) bond lengths. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 3-coordinate geometry to three equivalent Os(1) atoms. In the second Ga site, Ga(2) is bonded in a linear geometry to two equivalent Os(1) atoms.