Pb5P6O11 crystallizes in the triclinic P1 space group. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted single-bond geometry to one O(3) atom. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(6) atom. In the third Pb site, Pb(3) is bonded in a 6-coordinate geometry to one P(4), two equivalent P(5), one O(10), one O(11), and one O(7) atom. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to one P(5), one O(10), one O(5), one O(7), and two equivalent O(4) atoms. In the fifth Pb site, Pb(5) is bonded in a distorted pentagonal planar geometry to one O(11), one O(3), one O(9), and two equivalent O(8) atoms. There are six inequivalent P sites. In the first P site, P(1) is bonded in a single-bond geometry to one O(1) atom. In the second P site, P(2) is bonded in a water-like geometry to one O(2) and one O(3) atom. In the third P site, P(3) is bonded in a single-bond geometry to one O(4) atom. In the fourth P site, P(4) is bonded in a trigonal planar geometry to one Pb(3), one O(5), one O(6), and one O(7) atom. In the fifth P site, P(5) is bonded in a single-bond geometry to one Pb(4), two equivalent Pb(3), and one O(8) atom. In the sixth P site, P(6) is bonded in a trigonal non-coplanar geometry to one O(10), one O(11), and one O(9) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Pb(2) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Pb(2) and one P(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Pb(1), one Pb(5), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Pb(4) and one P(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Pb(4) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Pb(2) and one P(4) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Pb(3), one Pb(4), and one P(4) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Pb(5) and one P(5) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Pb(5) and one P(6) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Pb(3), one Pb(4), and one P(6) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Pb(3), one Pb(5), and one P(6) atom.
Pb5P6O11 crystallizes in the triclinic P1 space group. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted single-bond geometry to one O(3) atom. The Pb(1)-O(3) bond length is 2.43 Å. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(6) atom. The Pb(2)-O(1) bond length is 2.51 Å. The Pb(2)-O(2) bond length is 2.42 Å. The Pb(2)-O(6) bond length is 2.62 Å. In the third Pb site, Pb(3) is bonded in a 6-coordinate geometry to one P(4), two equivalent P(5), one O(10), one O(11), and one O(7) atom. The Pb(3)-P(4) bond length is 2.84 Å. There is one shorter (2.71 Å) and one longer (3.07 Å) Pb(3)-P(5) bond length. The Pb(3)-O(10) bond length is 2.52 Å. The Pb(3)-O(11) bond length is 2.76 Å. The Pb(3)-O(7) bond length is 2.77 Å. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to one P(5), one O(10), one O(5), one O(7), and two equivalent O(4) atoms. The Pb(4)-P(5) bond length is 2.86 Å. The Pb(4)-O(10) bond length is 2.50 Å. The Pb(4)-O(5) bond length is 2.61 Å. The Pb(4)-O(7) bond length is 2.74 Å. There is one shorter (2.62 Å) and one longer (2.64 Å) Pb(4)-O(4) bond length. In the fifth Pb site, Pb(5) is bonded in a distorted pentagonal planar geometry to one O(11), one O(3), one O(9), and two equivalent O(8) atoms. The Pb(5)-O(11) bond length is 2.64 Å. The Pb(5)-O(3) bond length is 2.65 Å. The Pb(5)-O(9) bond length is 2.52 Å. There is one shorter (2.55 Å) and one longer (2.56 Å) Pb(5)-O(8) bond length. There are six inequivalent P sites. In the first P site, P(1) is bonded in a single-bond geometry to one O(1) atom. The P(1)-O(1) bond length is 1.54 Å. In the second P site, P(2) is bonded in a water-like geometry to one O(2) and one O(3) atom. The P(2)-O(2) bond length is 1.52 Å. The P(2)-O(3) bond length is 1.56 Å. In the third P site, P(3) is bonded in a single-bond geometry to one O(4) atom. The P(3)-O(4) bond length is 1.58 Å. In the fourth P site, P(4) is bonded in a trigonal planar geometry to one Pb(3), one O(5), one O(6), and one O(7) atom. The P(4)-O(5) bond length is 1.50 Å. The P(4)-O(6) bond length is 1.51 Å. The P(4)-O(7) bond length is 1.54 Å. In the fifth P site, P(5) is bonded in a single-bond geometry to one Pb(4), two equivalent Pb(3), and one O(8) atom. The P(5)-O(8) bond length is 1.61 Å. In the sixth P site, P(6) is bonded in a trigonal non-coplanar geometry to one O(10), one O(11), and one O(9) atom. The P(6)-O(10) bond length is 1.56 Å. The P(6)-O(11) bond length is 1.56 Å. The P(6)-O(9) bond length is 1.54 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Pb(2) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Pb(2) and one P(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Pb(1), one Pb(5), and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Pb(4) and one P(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Pb(4) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Pb(2) and one P(4) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Pb(3), one Pb(4), and one P(4) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Pb(5) and one P(5) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Pb(5) and one P(6) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Pb(3), one Pb(4), and one P(6) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Pb(3), one Pb(5), and one P(6) atom.