Ce3(Pd10P3)2 crystallizes in the cubic Fm-3m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to four equivalent Pd(1) and twelve equivalent Pd(2) atoms to form distorted CePd16 tetrahedra that share edges with six equivalent Ce(1)Pd16 tetrahedra and faces with four equivalent Ce(2)P6Pd12 cuboctahedra. In the second Ce site, Ce(2) is bonded to twelve equivalent Pd(2) and six equivalent P(1) atoms to form distorted face-sharing CeP6Pd12 cuboctahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to one Ce(1), six equivalent Pd(2), and three equivalent P(1) atoms. In the second Pd site, Pd(2) is bonded in a 14-coordinate geometry to one Ce(2), two equivalent Ce(1), four equivalent Pd(1), five equivalent Pd(2), and two equivalent P(1) atoms. P(1) is bonded in a 9-coordinate geometry to one Ce(2), four equivalent Pd(1), and four equivalent Pd(2) atoms.
Ce3(Pd10P3)2 crystallizes in the cubic Fm-3m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to four equivalent Pd(1) and twelve equivalent Pd(2) atoms to form distorted CePd16 tetrahedra that share edges with six equivalent Ce(1)Pd16 tetrahedra and faces with four equivalent Ce(2)P6Pd12 cuboctahedra. All Ce(1)-Pd(1) bond lengths are 2.89 Å. All Ce(1)-Pd(2) bond lengths are 3.35 Å. In the second Ce site, Ce(2) is bonded to twelve equivalent Pd(2) and six equivalent P(1) atoms to form distorted face-sharing CeP6Pd12 cuboctahedra. All Ce(2)-Pd(2) bond lengths are 3.01 Å. All Ce(2)-P(1) bond lengths are 3.24 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to one Ce(1), six equivalent Pd(2), and three equivalent P(1) atoms. All Pd(1)-Pd(2) bond lengths are 3.06 Å. All Pd(1)-P(1) bond lengths are 2.49 Å. In the second Pd site, Pd(2) is bonded in a 14-coordinate geometry to one Ce(2), two equivalent Ce(1), four equivalent Pd(1), five equivalent Pd(2), and two equivalent P(1) atoms. There is one shorter (2.68 Å) and four longer (3.01 Å) Pd(2)-Pd(2) bond lengths. Both Pd(2)-P(1) bond lengths are 2.40 Å. P(1) is bonded in a 9-coordinate geometry to one Ce(2), four equivalent Pd(1), and four equivalent Pd(2) atoms.