La2PbF8 crystallizes in the triclinic P1 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one F(2), one F(3), one F(4), two equivalent F(1), two equivalent F(5), and two equivalent F(6) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one F(3), one F(4), one F(5), one F(6), one F(8), two equivalent F(2), and two equivalent F(7) atoms. Pb(1) is bonded in a 6-coordinate geometry to one F(1), one F(4), one F(6), one F(7), and two equivalent F(8) atoms. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a trigonal non-coplanar geometry to two equivalent La(1) and one Pb(1) atom. In the second F site, F(2) is bonded in a trigonal non-coplanar geometry to one La(1) and two equivalent La(2) atoms. In the third F site, F(3) is bonded in a distorted single-bond geometry to one La(1) and one La(2) atom. In the fourth F site, F(4) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Pb(1) atom. In the fifth F site, F(5) is bonded in a trigonal non-coplanar geometry to one La(2) and two equivalent La(1) atoms. In the sixth F site, F(6) is bonded to one La(2), two equivalent La(1), and one Pb(1) atom to form corner-sharing FLa3Pb tetrahedra. In the seventh F site, F(7) is bonded in a trigonal planar geometry to two equivalent La(2) and one Pb(1) atom. In the eighth F site, F(8) is bonded in a 3-coordinate geometry to one La(2) and two equivalent Pb(1) atoms.
La2PbF8 crystallizes in the triclinic P1 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one F(2), one F(3), one F(4), two equivalent F(1), two equivalent F(5), and two equivalent F(6) atoms. The La(1)-F(2) bond length is 2.47 Å. The La(1)-F(3) bond length is 2.37 Å. The La(1)-F(4) bond length is 2.42 Å. There is one shorter (2.46 Å) and one longer (2.47 Å) La(1)-F(1) bond length. There is one shorter (2.58 Å) and one longer (2.61 Å) La(1)-F(5) bond length. There is one shorter (2.62 Å) and one longer (2.72 Å) La(1)-F(6) bond length. In the second La site, La(2) is bonded in a 9-coordinate geometry to one F(3), one F(4), one F(5), one F(6), one F(8), two equivalent F(2), and two equivalent F(7) atoms. The La(2)-F(3) bond length is 2.83 Å. The La(2)-F(4) bond length is 2.71 Å. The La(2)-F(5) bond length is 2.42 Å. The La(2)-F(6) bond length is 2.43 Å. The La(2)-F(8) bond length is 2.39 Å. There is one shorter (2.55 Å) and one longer (2.64 Å) La(2)-F(2) bond length. There is one shorter (2.38 Å) and one longer (2.41 Å) La(2)-F(7) bond length. Pb(1) is bonded in a 6-coordinate geometry to one F(1), one F(4), one F(6), one F(7), and two equivalent F(8) atoms. The Pb(1)-F(1) bond length is 2.50 Å. The Pb(1)-F(4) bond length is 2.61 Å. The Pb(1)-F(6) bond length is 2.62 Å. The Pb(1)-F(7) bond length is 2.62 Å. There is one shorter (2.44 Å) and one longer (2.65 Å) Pb(1)-F(8) bond length. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a trigonal non-coplanar geometry to two equivalent La(1) and one Pb(1) atom. In the second F site, F(2) is bonded in a trigonal non-coplanar geometry to one La(1) and two equivalent La(2) atoms. In the third F site, F(3) is bonded in a distorted single-bond geometry to one La(1) and one La(2) atom. In the fourth F site, F(4) is bonded in a 3-coordinate geometry to one La(1), one La(2), and one Pb(1) atom. In the fifth F site, F(5) is bonded in a trigonal non-coplanar geometry to one La(2) and two equivalent La(1) atoms. In the sixth F site, F(6) is bonded to one La(2), two equivalent La(1), and one Pb(1) atom to form corner-sharing FLa3Pb tetrahedra. In the seventh F site, F(7) is bonded in a trigonal planar geometry to two equivalent La(2) and one Pb(1) atom. In the eighth F site, F(8) is bonded in a 3-coordinate geometry to one La(2) and two equivalent Pb(1) atoms.