LiAl2Pb2H4(O2F3)2 crystallizes in the triclinic P1 space group. Li(1) is bonded to one O(1), one O(3), one F(1), one F(3), and one F(4) atom to form distorted LiO2F3 trigonal bipyramids that share  an edgeedge with one Al(2)O3F3 octahedra and edges with two equivalent Al(1)O3F3 octahedra. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(2), one O(3), one F(1), one F(3), and one F(5) atom to form AlO3F3 octahedra that share  an edgeedge with one Al(2)O3F3 octahedra and edges with two equivalent Li(1)O2F3 trigonal bipyramids. In the second Al site, Al(2) is bonded to one O(1), one O(2), one O(4), one F(2), one F(4), and one F(6) atom to form AlO3F3 octahedra that share  an edgeedge with one Al(1)O3F3 octahedra and  an edgeedge with one Li(1)O2F3 trigonal bipyramid. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(3), one O(4), one F(2), and one F(5) atom. In the second Pb site, Pb(2) is bonded in a distorted rectangular see-saw-like geometry to one O(4), one F(1), one F(3), and one F(6) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Al(1), one Al(2), and one H(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Al(1), one Al(2), and one H(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Al(1), one Pb(1), and one H(3) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Al(2), one Pb(1), one Pb(2), and one H(4) atom. There are six inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Li(1), one Al(1), and one Pb(2) atom. In the second F site, F(2) is bonded in a distorted water-like geometry to one Al(2) and one Pb(1) atom. In the third F site, F(3) is bonded in a 3-coordinate geometry to one Li(1), one Al(1), and one Pb(2) atom. In the fourth F site, F(4) is bonded in a water-like geometry to one Li(1) and one Al(2) atom. In the fifth F site, F(5) is bonded in a distorted single-bond geometry to one Al(1) and one Pb(1) atom. In the sixth F site, F(6) is bonded in a single-bond geometry to one Al(2) and one Pb(2) atom.
LiAl2Pb2H4(O2F3)2 crystallizes in the triclinic P1 space group. Li(1) is bonded to one O(1), one O(3), one F(1), one F(3), and one F(4) atom to form distorted LiO2F3 trigonal bipyramids that share  an edgeedge with one Al(2)O3F3 octahedra and edges with two equivalent Al(1)O3F3 octahedra. The Li(1)-O(1) bond length is 2.06 Å. The Li(1)-O(3) bond length is 2.10 Å. The Li(1)-F(1) bond length is 1.96 Å. The Li(1)-F(3) bond length is 1.97 Å. The Li(1)-F(4) bond length is 1.92 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(2), one O(3), one F(1), one F(3), and one F(5) atom to form AlO3F3 octahedra that share  an edgeedge with one Al(2)O3F3 octahedra and edges with two equivalent Li(1)O2F3 trigonal bipyramids. The Al(1)-O(1) bond length is 1.93 Å. The Al(1)-O(2) bond length is 1.95 Å. The Al(1)-O(3) bond length is 1.91 Å. The Al(1)-F(1) bond length is 1.84 Å. The Al(1)-F(3) bond length is 1.84 Å. The Al(1)-F(5) bond length is 1.80 Å. In the second Al site, Al(2) is bonded to one O(1), one O(2), one O(4), one F(2), one F(4), and one F(6) atom to form AlO3F3 octahedra that share  an edgeedge with one Al(1)O3F3 octahedra and  an edgeedge with one Li(1)O2F3 trigonal bipyramid. The Al(2)-O(1) bond length is 1.96 Å. The Al(2)-O(2) bond length is 1.93 Å. The Al(2)-O(4) bond length is 1.94 Å. The Al(2)-F(2) bond length is 1.82 Å. The Al(2)-F(4) bond length is 1.87 Å. The Al(2)-F(6) bond length is 1.82 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(3), one O(4), one F(2), and one F(5) atom. The Pb(1)-O(3) bond length is 2.38 Å. The Pb(1)-O(4) bond length is 2.49 Å. The Pb(1)-F(2) bond length is 2.50 Å. The Pb(1)-F(5) bond length is 2.56 Å. In the second Pb site, Pb(2) is bonded in a distorted rectangular see-saw-like geometry to one O(4), one F(1), one F(3), and one F(6) atom. The Pb(2)-O(4) bond length is 2.60 Å. The Pb(2)-F(1) bond length is 2.50 Å. The Pb(2)-F(3) bond length is 2.45 Å. The Pb(2)-F(6) bond length is 2.68 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.98 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.98 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(3) atom. The H(3)-O(3) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(4) atom. The H(4)-O(4) bond length is 0.98 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Al(1), one Al(2), and one H(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Al(1), one Al(2), and one H(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Li(1), one Al(1), one Pb(1), and one H(3) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Al(2), one Pb(1), one Pb(2), and one H(4) atom. There are six inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Li(1), one Al(1), and one Pb(2) atom. In the second F site, F(2) is bonded in a distorted water-like geometry to one Al(2) and one Pb(1) atom. In the third F site, F(3) is bonded in a 3-coordinate geometry to one Li(1), one Al(1), and one Pb(2) atom. In the fourth F site, F(4) is bonded in a water-like geometry to one Li(1) and one Al(2) atom. In the fifth F site, F(5) is bonded in a distorted single-bond geometry to one Al(1) and one Pb(1) atom. In the sixth F site, F(6) is bonded in a single-bond geometry to one Al(2) and one Pb(2) atom.