Fe10O11F9 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are ten inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(11), one O(4), one O(8), one F(1), one F(2), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(6)O4F2 octahedra,  an edgeedge with one Fe(5)O3F3 octahedra, and  an edgeedge with one Fe(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(5), one O(9), one F(1), and one F(7) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(6)O4F2 octahedra, corners with four equivalent Fe(8)O4F2 octahedra,  an edgeedge with one Fe(1)O3F3 octahedra, and  an edgeedge with one Fe(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. In the third Fe site, Fe(3) is bonded to one O(1), one O(10), one O(2), one F(3), one F(6), and one F(7) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(7)O3F3 octahedra, corners with four equivalent Fe(8)O4F2 octahedra,  an edgeedge with one Fe(4)O3F3 octahedra, and  an edgeedge with one Fe(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-55°. In the fourth Fe site, Fe(4) is bonded to one O(2), one O(3), one O(6), one F(4), one F(6), and one F(9) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. In the fifth Fe site, Fe(5) is bonded to one O(3), one O(4), one O(7), one F(5), one F(8), and one F(9) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-57°. In the sixth Fe site, Fe(6) is bonded to one O(11), one O(5), one O(8), one O(9), one F(1), and one F(2) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(1)O3F3 octahedra, corners with four equivalent Fe(2)O4F2 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(8)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. In the seventh Fe site, Fe(7) is bonded to one O(10), one O(2), one O(6), one F(3), one F(4), and one F(6) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(3)O3F3 octahedra, corners with four equivalent Fe(4)O3F3 octahedra,  an edgeedge with one Fe(9)O3F3 octahedra, and  an edgeedge with one Fe(8)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. In the eighth Fe site, Fe(8) is bonded to one O(1), one O(10), one O(5), one O(9), one F(3), and one F(7) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(3)O3F3 octahedra, corners with four equivalent Fe(2)O4F2 octahedra,  an edgeedge with one Fe(7)O3F3 octahedra, and  an edgeedge with one Fe(6)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-55°. In the ninth Fe site, Fe(9) is bonded to one O(3), one O(6), one O(7), one F(4), one F(5), and one F(9) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-57°. In the tenth Fe site, Fe(10) is bonded to one O(4), one O(7), one O(8), one F(2), one F(5), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(1)O3F3 octahedra, corners with four equivalent Fe(5)O3F3 octahedra,  an edgeedge with one Fe(9)O3F3 octahedra, and  an edgeedge with one Fe(6)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(4), one Fe(5), and one Fe(9) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the eleventh O site, O(11) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. There are nine inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the sixth F site, F(6) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the eighth F site, F(8) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the ninth F site, F(9) is bonded in a distorted T-shaped geometry to one Fe(4), one Fe(5), and one Fe(9) atom.
Fe10O11F9 is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are ten inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(11), one O(4), one O(8), one F(1), one F(2), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(6)O4F2 octahedra,  an edgeedge with one Fe(5)O3F3 octahedra, and  an edgeedge with one Fe(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. The Fe(1)-O(11) bond length is 1.98 Å. The Fe(1)-O(4) bond length is 1.96 Å. The Fe(1)-O(8) bond length is 1.92 Å. The Fe(1)-F(1) bond length is 2.05 Å. The Fe(1)-F(2) bond length is 2.15 Å. The Fe(1)-F(8) bond length is 2.06 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(5), one O(9), one F(1), and one F(7) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(6)O4F2 octahedra, corners with four equivalent Fe(8)O4F2 octahedra,  an edgeedge with one Fe(1)O3F3 octahedra, and  an edgeedge with one Fe(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. The Fe(2)-O(1) bond length is 1.92 Å. The Fe(2)-O(11) bond length is 1.91 Å. The Fe(2)-O(5) bond length is 1.98 Å. The Fe(2)-O(9) bond length is 1.99 Å. The Fe(2)-F(1) bond length is 2.09 Å. The Fe(2)-F(7) bond length is 2.10 Å. In the third Fe site, Fe(3) is bonded to one O(1), one O(10), one O(2), one F(3), one F(6), and one F(7) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(7)O3F3 octahedra, corners with four equivalent Fe(8)O4F2 octahedra,  an edgeedge with one Fe(4)O3F3 octahedra, and  an edgeedge with one Fe(2)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-55°. The Fe(3)-O(1) bond length is 1.96 Å. The Fe(3)-O(10) bond length is 1.93 Å. The Fe(3)-O(2) bond length is 1.93 Å. The Fe(3)-F(3) bond length is 2.15 Å. The Fe(3)-F(6) bond length is 2.13 Å. The Fe(3)-F(7) bond length is 2.09 Å. In the fourth Fe site, Fe(4) is bonded to one O(2), one O(3), one O(6), one F(4), one F(6), and one F(9) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. The Fe(4)-O(2) bond length is 1.94 Å. The Fe(4)-O(3) bond length is 1.94 Å. The Fe(4)-O(6) bond length is 1.93 Å. The Fe(4)-F(4) bond length is 2.12 Å. The Fe(4)-F(6) bond length is 2.14 Å. The Fe(4)-F(9) bond length is 2.16 Å. In the fifth Fe site, Fe(5) is bonded to one O(3), one O(4), one O(7), one F(5), one F(8), and one F(9) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-57°. The Fe(5)-O(3) bond length is 1.94 Å. The Fe(5)-O(4) bond length is 1.94 Å. The Fe(5)-O(7) bond length is 1.93 Å. The Fe(5)-F(5) bond length is 2.13 Å. The Fe(5)-F(8) bond length is 2.15 Å. The Fe(5)-F(9) bond length is 2.15 Å. In the sixth Fe site, Fe(6) is bonded to one O(11), one O(5), one O(8), one O(9), one F(1), and one F(2) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(1)O3F3 octahedra, corners with four equivalent Fe(2)O4F2 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(8)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. The Fe(6)-O(11) bond length is 1.96 Å. The Fe(6)-O(5) bond length is 1.99 Å. The Fe(6)-O(8) bond length is 1.97 Å. The Fe(6)-O(9) bond length is 1.96 Å. The Fe(6)-F(1) bond length is 2.22 Å. The Fe(6)-F(2) bond length is 2.14 Å. In the seventh Fe site, Fe(7) is bonded to one O(10), one O(2), one O(6), one F(3), one F(4), and one F(6) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(3)O3F3 octahedra, corners with four equivalent Fe(4)O3F3 octahedra,  an edgeedge with one Fe(9)O3F3 octahedra, and  an edgeedge with one Fe(8)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-53°. The Fe(7)-O(10) bond length is 1.95 Å. The Fe(7)-O(2) bond length is 1.95 Å. The Fe(7)-O(6) bond length is 1.96 Å. The Fe(7)-F(3) bond length is 2.06 Å. The Fe(7)-F(4) bond length is 2.09 Å. The Fe(7)-F(6) bond length is 2.18 Å. In the eighth Fe site, Fe(8) is bonded to one O(1), one O(10), one O(5), one O(9), one F(3), and one F(7) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(3)O3F3 octahedra, corners with four equivalent Fe(2)O4F2 octahedra,  an edgeedge with one Fe(7)O3F3 octahedra, and  an edgeedge with one Fe(6)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-55°. The Fe(8)-O(1) bond length is 1.97 Å. The Fe(8)-O(10) bond length is 1.97 Å. The Fe(8)-O(5) bond length is 1.98 Å. The Fe(8)-O(9) bond length is 1.96 Å. The Fe(8)-F(3) bond length is 2.16 Å. The Fe(8)-F(7) bond length is 2.20 Å. In the ninth Fe site, Fe(9) is bonded to one O(3), one O(6), one O(7), one F(4), one F(5), and one F(9) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-57°. The Fe(9)-O(3) bond length is 1.96 Å. The Fe(9)-O(6) bond length is 1.93 Å. The Fe(9)-O(7) bond length is 1.93 Å. The Fe(9)-F(4) bond length is 2.15 Å. The Fe(9)-F(5) bond length is 2.14 Å. The Fe(9)-F(9) bond length is 2.17 Å. In the tenth Fe site, Fe(10) is bonded to one O(4), one O(7), one O(8), one F(2), one F(5), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(1)O3F3 octahedra, corners with four equivalent Fe(5)O3F3 octahedra,  an edgeedge with one Fe(9)O3F3 octahedra, and  an edgeedge with one Fe(6)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. The Fe(10)-O(4) bond length is 1.93 Å. The Fe(10)-O(7) bond length is 1.96 Å. The Fe(10)-O(8) bond length is 1.95 Å. The Fe(10)-F(2) bond length is 2.06 Å. The Fe(10)-F(5) bond length is 2.10 Å. The Fe(10)-F(8) bond length is 2.22 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(4), one Fe(5), and one Fe(9) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the tenth O site, O(10) is bonded in a trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the eleventh O site, O(11) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. There are nine inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the sixth F site, F(6) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the eighth F site, F(8) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the ninth F site, F(9) is bonded in a distorted T-shaped geometry to one Fe(4), one Fe(5), and one Fe(9) atom.