Zr6Os7Ga16 crystallizes in the cubic Fm-3m space group. Zr(1) is bonded in a 12-coordinate geometry to four equivalent Os(2), four equivalent Ga(1), and four equivalent Ga(2) atoms. There are two inequivalent Os sites. In the first Os site, Os(2) is bonded to four equivalent Zr(1), four equivalent Ga(1), and four equivalent Ga(2) atoms to form a mixture of distorted face and corner-sharing OsZr4Ga8 cuboctahedra. In the second Os site, Os(1) is bonded in a body-centered cubic geometry to eight equivalent Ga(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(2) is bonded in a 6-coordinate geometry to three equivalent Zr(1) and three equivalent Os(2) atoms. In the second Ga site, Ga(1) is bonded in a 7-coordinate geometry to three equivalent Zr(1), one Os(1), and three equivalent Os(2) atoms.
Zr6Os7Ga16 crystallizes in the cubic Fm-3m space group. Zr(1) is bonded in a 12-coordinate geometry to four equivalent Os(2), four equivalent Ga(1), and four equivalent Ga(2) atoms. All Zr(1)-Os(2) bond lengths are 3.14 Å. All Zr(1)-Ga(1) bond lengths are 2.93 Å. All Zr(1)-Ga(2) bond lengths are 2.84 Å. There are two inequivalent Os sites. In the first Os site, Os(2) is bonded to four equivalent Zr(1), four equivalent Ga(1), and four equivalent Ga(2) atoms to form a mixture of distorted face and corner-sharing OsZr4Ga8 cuboctahedra. All Os(2)-Ga(1) bond lengths are 2.71 Å. All Os(2)-Ga(2) bond lengths are 2.56 Å. In the second Os site, Os(1) is bonded in a body-centered cubic geometry to eight equivalent Ga(1) atoms. All Os(1)-Ga(1) bond lengths are 2.67 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(2) is bonded in a 6-coordinate geometry to three equivalent Zr(1) and three equivalent Os(2) atoms. In the second Ga site, Ga(1) is bonded in a 7-coordinate geometry to three equivalent Zr(1), one Os(1), and three equivalent Os(2) atoms.