La5Pb3As crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 5-coordinate geometry to five equivalent Pb(1) and two equivalent As(1) atoms. In the second La site, La(2) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. Pb(1) is bonded in a 9-coordinate geometry to four equivalent La(2) and five equivalent La(1) atoms. As(1) is bonded to six equivalent La(1) atoms to form face-sharing AsLa6 octahedra.
La5Pb3As crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 5-coordinate geometry to five equivalent Pb(1) and two equivalent As(1) atoms. There are a spread of La(1)-Pb(1) bond distances ranging from 3.39-4.02 Å. Both La(1)-As(1) bond lengths are 2.98 Å. In the second La site, La(2) is bonded in a 6-coordinate geometry to six equivalent Pb(1) atoms. All La(2)-Pb(1) bond lengths are 3.49 Å. Pb(1) is bonded in a 9-coordinate geometry to four equivalent La(2) and five equivalent La(1) atoms. As(1) is bonded to six equivalent La(1) atoms to form face-sharing AsLa6 octahedra.