Ce4Zn3Sb8 crystallizes in the tetragonal P-4m2 space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 10-coordinate geometry to two equivalent Zn(2), two equivalent Sb(3), two equivalent Sb(4), and four equivalent Sb(2) atoms. In the second Ce site, Ce(2) is bonded to four equivalent Zn(1,3); two equivalent Sb(3); two equivalent Sb(4); and four equivalent Sb(1) atoms to form a mixture of face, corner, and edge-sharing CeZn4Sb8 cuboctahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1,3) is bonded in a 4-coordinate geometry to four equivalent Ce(2) and four equivalent Sb(1) atoms. In the second Zn site, Zn(2) is bonded to four equivalent Ce(1) and four equivalent Sb(2) atoms to form distorted edge-sharing ZnCe4Sb4 tetrahedra. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to four equivalent Ce(2) and four equivalent Zn(1,3) atoms. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to four equivalent Ce(1) and two equivalent Zn(2) atoms. In the third Sb site, Sb(3) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Sb(4) atoms. In the fourth Sb site, Sb(4) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Sb(3) atoms.
Ce4Zn3Sb8 crystallizes in the tetragonal P-4m2 space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 10-coordinate geometry to two equivalent Zn(2), two equivalent Sb(3), two equivalent Sb(4), and four equivalent Sb(2) atoms. Both Ce(1)-Zn(2) bond lengths are 3.34 Å. Both Ce(1)-Sb(3) bond lengths are 3.33 Å. Both Ce(1)-Sb(4) bond lengths are 3.33 Å. All Ce(1)-Sb(2) bond lengths are 3.28 Å. In the second Ce site, Ce(2) is bonded to four equivalent Zn(1,3); two equivalent Sb(3); two equivalent Sb(4); and four equivalent Sb(1) atoms to form a mixture of face, corner, and edge-sharing CeZn4Sb8 cuboctahedra. All Ce(2)-Zn(1,3) bond lengths are 3.41 Å. Both Ce(2)-Sb(3) bond lengths are 3.30 Å. Both Ce(2)-Sb(4) bond lengths are 3.31 Å. All Ce(2)-Sb(1) bond lengths are 3.26 Å. There are two inequivalent Zn sites. In the first Zn site, Zn(1,3) is bonded in a 4-coordinate geometry to four equivalent Ce(2) and four equivalent Sb(1) atoms. All Zn(1,3)-Sb(1) bond lengths are 2.85 Å. In the second Zn site, Zn(2) is bonded to four equivalent Ce(1) and four equivalent Sb(2) atoms to form distorted edge-sharing ZnCe4Sb4 tetrahedra. All Zn(2)-Sb(2) bond lengths are 2.74 Å. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to four equivalent Ce(2) and four equivalent Zn(1,3) atoms. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to four equivalent Ce(1) and two equivalent Zn(2) atoms. In the third Sb site, Sb(3) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Sb(4) atoms. All Sb(3)-Sb(4) bond lengths are 3.16 Å. In the fourth Sb site, Sb(4) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Sb(3) atoms.