Zn2P2O11F2 crystallizes in the triclinic P-1 space group. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted linear geometry to two equivalent O(2) and two equivalent O(9) atoms. In the second Zn site, Zn(2) is bonded in a square co-planar geometry to two equivalent O(10) and two equivalent O(4) atoms. In the third Zn site, Zn(3) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form ZnO4 tetrahedra that share corners with two equivalent P(1)O3F tetrahedra and corners with two equivalent P(2)O3F tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one F(1) atom to form PO3F tetrahedra that share corners with two equivalent Zn(3)O4 tetrahedra. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one F(2) atom to form PO3F tetrahedra that share corners with two equivalent Zn(3)O4 tetrahedra. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Zn(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one P(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one O(8) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one O(10) and one O(7) atom. In the ninth O site, O(9) is bonded in an L-shaped geometry to one Zn(1) and one O(11) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Zn(2) and one O(8) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one O(9) atom. There are two inequivalent F sites. In the first F site, F(2) is bonded in a single-bond geometry to one P(2) atom. In the second F site, F(1) is bonded in a single-bond geometry to one P(1) atom.
Zn2P2O11F2 crystallizes in the triclinic P-1 space group. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted linear geometry to two equivalent O(2) and two equivalent O(9) atoms. Both Zn(1)-O(2) bond lengths are 1.79 Å. Both Zn(1)-O(9) bond lengths are 2.51 Å. In the second Zn site, Zn(2) is bonded in a square co-planar geometry to two equivalent O(10) and two equivalent O(4) atoms. Both Zn(2)-O(10) bond lengths are 2.22 Å. Both Zn(2)-O(4) bond lengths are 1.87 Å. In the third Zn site, Zn(3) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form ZnO4 tetrahedra that share corners with two equivalent P(1)O3F tetrahedra and corners with two equivalent P(2)O3F tetrahedra. The Zn(3)-O(1) bond length is 1.96 Å. The Zn(3)-O(3) bond length is 1.98 Å. The Zn(3)-O(5) bond length is 1.94 Å. The Zn(3)-O(6) bond length is 1.96 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one F(1) atom to form PO3F tetrahedra that share corners with two equivalent Zn(3)O4 tetrahedra. The P(1)-O(1) bond length is 1.51 Å. The P(1)-O(2) bond length is 1.55 Å. The P(1)-O(3) bond length is 1.51 Å. The P(1)-F(1) bond length is 1.58 Å. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one F(2) atom to form PO3F tetrahedra that share corners with two equivalent Zn(3)O4 tetrahedra. The P(2)-O(4) bond length is 1.55 Å. The P(2)-O(5) bond length is 1.51 Å. The P(2)-O(6) bond length is 1.52 Å. The P(2)-F(2) bond length is 1.58 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Zn(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one P(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one O(8) atom. The O(7)-O(8) bond length is 1.26 Å. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one O(10) and one O(7) atom. The O(8)-O(10) bond length is 1.33 Å. In the ninth O site, O(9) is bonded in an L-shaped geometry to one Zn(1) and one O(11) atom. The O(9)-O(11) bond length is 1.24 Å. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Zn(2) and one O(8) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one O(9) atom. There are two inequivalent F sites. In the first F site, F(2) is bonded in a single-bond geometry to one P(2) atom. In the second F site, F(1) is bonded in a single-bond geometry to one P(1) atom.