Th5Pb3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. In the second Th site, Th(2) is bonded in a 5-coordinate geometry to five equivalent Pb(1) atoms. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Th(1) and five equivalent Th(2) atoms.
Th5Pb3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. All Th(1)-Pb(1) bond lengths are 3.38 Å. In the second Th site, Th(2) is bonded in a 5-coordinate geometry to five equivalent Pb(1) atoms. There are a spread of Th(2)-Pb(1) bond distances ranging from 3.25-3.53 Å. Pb(1) is bonded in a 9-coordinate geometry to four equivalent Th(1) and five equivalent Th(2) atoms.