Os3Cl is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded to four equivalent Os(2) and four equivalent Cl(1) atoms to form a mixture of distorted corner, edge, and face-sharing OsOs4Cl4 tetrahedra. In the second Os site, Os(2) is bonded in a 14-coordinate geometry to eight equivalent Os(1) and six equivalent Cl(1) atoms. Cl(1) is bonded in a body-centered cubic geometry to six equivalent Os(2) and eight equivalent Os(1) atoms.
Os3Cl is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded to four equivalent Os(2) and four equivalent Cl(1) atoms to form a mixture of distorted corner, edge, and face-sharing OsOs4Cl4 tetrahedra. All Os(1)-Os(2) bond lengths are 2.69 Å. All Os(1)-Cl(1) bond lengths are 2.69 Å. In the second Os site, Os(2) is bonded in a 14-coordinate geometry to eight equivalent Os(1) and six equivalent Cl(1) atoms. All Os(2)-Cl(1) bond lengths are 3.11 Å. Cl(1) is bonded in a body-centered cubic geometry to six equivalent Os(2) and eight equivalent Os(1) atoms.