Yb3(Pd10P3)2 crystallizes in the cubic Fm-3m space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to four equivalent Pd(1) and twelve equivalent Pd(2) atoms to form distorted YbPd16 tetrahedra that share edges with six equivalent Yb(1)Pd16 tetrahedra and faces with four equivalent Yb(2)P6Pd12 cuboctahedra. In the second Yb site, Yb(2) is bonded to twelve equivalent Pd(2) and six equivalent P(1) atoms to form distorted face-sharing YbP6Pd12 cuboctahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to one Yb(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 Yb(2), two equivalent Yb(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 Yb(2), four equivalent Pd(1), and four equivalent Pd(2) atoms.
Yb3(Pd10P3)2 crystallizes in the cubic Fm-3m space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to four equivalent Pd(1) and twelve equivalent Pd(2) atoms to form distorted YbPd16 tetrahedra that share edges with six equivalent Yb(1)Pd16 tetrahedra and faces with four equivalent Yb(2)P6Pd12 cuboctahedra. All Yb(1)-Pd(1) bond lengths are 2.83 Å. All Yb(1)-Pd(2) bond lengths are 3.31 Å. In the second Yb site, Yb(2) is bonded to twelve equivalent Pd(2) and six equivalent P(1) atoms to form distorted face-sharing YbP6Pd12 cuboctahedra. All Yb(2)-Pd(2) bond lengths are 2.96 Å. All Yb(2)-P(1) bond lengths are 3.19 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to one Yb(1), six equivalent Pd(2), and three equivalent P(1) atoms. All Pd(1)-Pd(2) bond lengths are 3.01 Å. All Pd(1)-P(1) bond lengths are 2.47 Å. In the second Pd site, Pd(2) is bonded in a 14-coordinate geometry to one Yb(2), two equivalent Yb(1), four equivalent Pd(1), five equivalent Pd(2), and two equivalent P(1) atoms. There is one shorter (2.66 Å) and four longer (2.96 Å) Pd(2)-Pd(2) bond lengths. Both Pd(2)-P(1) bond lengths are 2.36 Å. P(1) is bonded in a 9-coordinate geometry to one Yb(2), four equivalent Pd(1), and four equivalent Pd(2) atoms.