Ru9Zn7Sb8 crystallizes in the cubic Fm-3m space group. There are two inequivalent Ru sites. In the first Ru site, Ru(2) is bonded in an octahedral geometry to six equivalent Sb(1) atoms. In the second Ru site, Ru(1) is bonded in a distorted body-centered cubic geometry to one Zn(2), three equivalent Zn(1), one Sb(2), and three equivalent Sb(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 10-coordinate geometry to four equivalent Ru(1), two equivalent Sb(2), and four equivalent Sb(1) atoms. In the second Zn site, Zn(2) is bonded in a body-centered cubic geometry to eight equivalent Ru(1) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(2) is bonded in a 10-coordinate geometry to four equivalent Ru(1) and six equivalent Zn(1) atoms. In the second Sb site, Sb(1) is bonded in a 9-coordinate geometry to one Ru(2), four equivalent Ru(1), and four equivalent Zn(1) atoms.
Ru9Zn7Sb8 crystallizes in the cubic Fm-3m space group. There are two inequivalent Ru sites. In the first Ru site, Ru(2) is bonded in an octahedral geometry to six equivalent Sb(1) atoms. All Ru(2)-Sb(1) bond lengths are 2.71 Å. In the second Ru site, Ru(1) is bonded in a distorted body-centered cubic geometry to one Zn(2), three equivalent Zn(1), one Sb(2), and three equivalent Sb(1) atoms. The Ru(1)-Zn(2) bond length is 2.57 Å. All Ru(1)-Zn(1) bond lengths are 2.61 Å. The Ru(1)-Sb(2) bond length is 2.63 Å. All Ru(1)-Sb(1) bond lengths are 2.77 Å. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 10-coordinate geometry to four equivalent Ru(1), two equivalent Sb(2), and four equivalent Sb(1) atoms. Both Zn(1)-Sb(2) bond lengths are 3.00 Å. All Zn(1)-Sb(1) bond lengths are 3.02 Å. In the second Zn site, Zn(2) is bonded in a body-centered cubic geometry to eight equivalent Ru(1) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(2) is bonded in a 10-coordinate geometry to four equivalent Ru(1) and six equivalent Zn(1) atoms. In the second Sb site, Sb(1) is bonded in a 9-coordinate geometry to one Ru(2), four equivalent Ru(1), and four equivalent Zn(1) atoms.