Fe6O11F is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are six inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(5), one O(6), one O(7), one O(9), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(5)O5F octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with four equivalent Fe(4)O5F octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-54°. In the second Fe site, Fe(2) is bonded to one O(11), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Fe(4)O5F octahedra, corners with two equivalent Fe(5)O5F octahedra, corners with four equivalent Fe(6)O6 octahedra,  an edgeedge with one Fe(1)O5F octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-53°. In the third Fe site, Fe(3) is bonded to one O(1), one O(10), one O(4), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Fe(4)O5F octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with four equivalent Fe(5)O5F octahedra,  an edgeedge with one Fe(1)O5F octahedra, and  an edgeedge with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-53°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(11), one O(2), one O(5), one O(7), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Fe(1)O5F octahedra,  an edgeedge with one Fe(5)O5F octahedra, and  an edgeedge with one Fe(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. In the fifth Fe site, Fe(5) is bonded to one O(1), one O(10), one O(3), one O(6), one O(8), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(1)O5F octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O5F octahedra, and  an edgeedge with one Fe(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-53°. In the sixth Fe site, Fe(6) is bonded to one O(10), one O(11), one O(2), one O(3), one O(4), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Fe(1)O5F octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(4)O5F octahedra, and  an edgeedge with one Fe(5)O5F octahedra. The corner-sharing octahedral tilt angles range from 45-51°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(3), one Fe(4), and one Fe(5) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(6) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(5), and one Fe(6) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(6) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(4) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(5) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(5) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Fe(3), one Fe(5), and one Fe(6) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(4), and one Fe(6) atom. F(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(5) atom.
Fe6O11F is Hydrophilite-derived structured and crystallizes in the triclinic P1 space group. There are six inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(5), one O(6), one O(7), one O(9), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(5)O5F octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with four equivalent Fe(4)O5F octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 46-54°. The Fe(1)-O(2) bond length is 1.96 Å. The Fe(1)-O(5) bond length is 1.94 Å. The Fe(1)-O(6) bond length is 1.94 Å. The Fe(1)-O(7) bond length is 1.96 Å. The Fe(1)-O(9) bond length is 1.93 Å. The Fe(1)-F(1) bond length is 2.11 Å. In the second Fe site, Fe(2) is bonded to one O(11), one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Fe(4)O5F octahedra, corners with two equivalent Fe(5)O5F octahedra, corners with four equivalent Fe(6)O6 octahedra,  an edgeedge with one Fe(1)O5F octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-53°. The Fe(2)-O(11) bond length is 2.04 Å. The Fe(2)-O(3) bond length is 2.04 Å. The Fe(2)-O(4) bond length is 1.94 Å. The Fe(2)-O(5) bond length is 1.94 Å. The Fe(2)-O(8) bond length is 1.96 Å. The Fe(2)-O(9) bond length is 1.92 Å. In the third Fe site, Fe(3) is bonded to one O(1), one O(10), one O(4), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with two equivalent Fe(4)O5F octahedra, corners with two equivalent Fe(6)O6 octahedra, corners with four equivalent Fe(5)O5F octahedra,  an edgeedge with one Fe(1)O5F octahedra, and  an edgeedge with one Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-53°. The Fe(3)-O(1) bond length is 2.07 Å. The Fe(3)-O(10) bond length is 2.09 Å. The Fe(3)-O(4) bond length is 1.94 Å. The Fe(3)-O(6) bond length is 1.94 Å. The Fe(3)-O(7) bond length is 1.93 Å. The Fe(3)-O(8) bond length is 1.95 Å. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(11), one O(2), one O(5), one O(7), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(2)O6 octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Fe(1)O5F octahedra,  an edgeedge with one Fe(5)O5F octahedra, and  an edgeedge with one Fe(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. The Fe(4)-O(1) bond length is 1.95 Å. The Fe(4)-O(11) bond length is 1.98 Å. The Fe(4)-O(2) bond length is 1.95 Å. The Fe(4)-O(5) bond length is 1.99 Å. The Fe(4)-O(7) bond length is 1.99 Å. The Fe(4)-F(1) bond length is 2.06 Å. In the fifth Fe site, Fe(5) is bonded to one O(1), one O(10), one O(3), one O(6), one O(8), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(1)O5F octahedra, corners with two equivalent Fe(2)O6 octahedra, corners with four equivalent Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O5F octahedra, and  an edgeedge with one Fe(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-53°. The Fe(5)-O(1) bond length is 1.92 Å. The Fe(5)-O(10) bond length is 1.96 Å. The Fe(5)-O(3) bond length is 1.94 Å. The Fe(5)-O(6) bond length is 1.99 Å. The Fe(5)-O(8) bond length is 1.99 Å. The Fe(5)-F(1) bond length is 2.07 Å. In the sixth Fe site, Fe(6) is bonded to one O(10), one O(11), one O(2), one O(3), one O(4), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Fe(1)O5F octahedra, corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  an edgeedge with one Fe(4)O5F octahedra, and  an edgeedge with one Fe(5)O5F octahedra. The corner-sharing octahedral tilt angles range from 45-51°. The Fe(6)-O(10) bond length is 1.91 Å. The Fe(6)-O(11) bond length is 1.91 Å. The Fe(6)-O(2) bond length is 1.89 Å. The Fe(6)-O(3) bond length is 1.93 Å. The Fe(6)-O(4) bond length is 2.01 Å. The Fe(6)-O(9) bond length is 2.01 Å. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(3), one Fe(4), and one Fe(5) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(6) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(5), and one Fe(6) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(6) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(4) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(5) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(5) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Fe(3), one Fe(5), and one Fe(6) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(4), and one Fe(6) atom. F(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(4), and one Fe(5) atom.