Pr5NiPb3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to two equivalent Ni(1) and five equivalent Pb(1) atoms. In the second Pr site, Pr(2) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. Ni(1) is bonded to six equivalent Pr(1) atoms to form face-sharing NiPr6 octahedra. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Pr(2) and five equivalent Pr(1) atoms.
Pr5NiPb3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to two equivalent Ni(1) and five equivalent Pb(1) atoms. Both Pr(1)-Ni(1) bond lengths are 2.84 Å. There are a spread of Pr(1)-Pb(1) bond distances ranging from 3.30-3.81 Å. In the second Pr site, Pr(2) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. All Pr(2)-Pb(1) bond lengths are 3.36 Å. Ni(1) is bonded to six equivalent Pr(1) atoms to form face-sharing NiPr6 octahedra. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Pr(2) and five equivalent Pr(1) atoms.