Ce4Ni3Bi8 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 11-coordinate geometry to two equivalent Ni(2), two equivalent Bi(1), two equivalent Bi(2), and five equivalent Bi(3) atoms. In the second Ce site, Ce(2) is bonded to four equivalent Ni(1,3); two equivalent Bi(1); two equivalent Bi(2); and four equivalent Bi(4) atoms to form a mixture of distorted corner, edge, and face-sharing CeNi4Bi8 cuboctahedra. There are two inequivalent Ni sites. In the first Ni site, Ni(1,3) is bonded in a distorted body-centered cubic geometry to four equivalent Ce(2) and four equivalent Bi(4) atoms. In the second Ni site, Ni(2) is bonded in a body-centered cubic geometry to four equivalent Ce(1) and four equivalent Bi(3) atoms. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Bi(2) atoms. In the second Bi site, Bi(2) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Bi(1) atoms. In the third Bi site, Bi(3) is bonded in a 7-coordinate geometry to five equivalent Ce(1) and two equivalent Ni(2) atoms. In the fourth Bi site, Bi(4) is bonded in a 8-coordinate geometry to four equivalent Ce(2) and four equivalent Ni(1,3) atoms.
Ce4Ni3Bi8 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 11-coordinate geometry to two equivalent Ni(2), two equivalent Bi(1), two equivalent Bi(2), and five equivalent Bi(3) atoms. Both Ce(1)-Ni(2) bond lengths are 3.15 Å. Both Ce(1)-Bi(1) bond lengths are 3.50 Å. Both Ce(1)-Bi(2) bond lengths are 3.49 Å. There are four shorter (3.34 Å) and one longer (3.47 Å) Ce(1)-Bi(3) bond length. In the second Ce site, Ce(2) is bonded to four equivalent Ni(1,3); two equivalent Bi(1); two equivalent Bi(2); and four equivalent Bi(4) atoms to form a mixture of distorted corner, edge, and face-sharing CeNi4Bi8 cuboctahedra. All Ce(2)-Ni(1,3) bond lengths are 3.21 Å. Both Ce(2)-Bi(1) bond lengths are 3.47 Å. Both Ce(2)-Bi(2) bond lengths are 3.48 Å. All Ce(2)-Bi(4) bond lengths are 3.35 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1,3) is bonded in a distorted body-centered cubic geometry to four equivalent Ce(2) and four equivalent Bi(4) atoms. All Ni(1,3)-Bi(4) bond lengths are 2.65 Å. In the second Ni site, Ni(2) is bonded in a body-centered cubic geometry to four equivalent Ce(1) and four equivalent Bi(3) atoms. All Ni(2)-Bi(3) bond lengths are 2.63 Å. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Bi(2) atoms. All Bi(1)-Bi(2) bond lengths are 3.23 Å. In the second Bi site, Bi(2) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent Bi(1) atoms. In the third Bi site, Bi(3) is bonded in a 7-coordinate geometry to five equivalent Ce(1) and two equivalent Ni(2) atoms. In the fourth Bi site, Bi(4) is bonded in a 8-coordinate geometry to four equivalent Ce(2) and four equivalent Ni(1,3) atoms.