The structure described by Fe10O9F11 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(4), one O(8), one F(1), one F(10), one F(2), and one F(7) atom to form FeO2F4 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(6)O3F3 octahedra,  an edgeedge with one Fe(2)O2F4 octahedra, and  an edgeedge with one Fe(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 48-60°. In the second Fe site, Fe(2) is bonded to one O(1), one O(5), one F(1), one F(4), one F(7), and one F(9) atom to form FeO2F4 octahedra that share corners with four equivalent Fe(6)O3F3 octahedra, corners with four equivalent Fe(8)O3F3 octahedra,  an edgeedge with one Fe(1)O2F4 octahedra, and  an edgeedge with one Fe(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-53°. In the third Fe site, Fe(3) is bonded to one O(1), one O(2), one O(9), one F(3), one F(8), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(7)O3F3 octahedra, corners with four equivalent Fe(8)O3F3 octahedra,  an edgeedge with one Fe(2)O2F4 octahedra, and  an edgeedge with one Fe(4)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the fourth Fe site, Fe(4) is bonded to one O(2), one O(3), one O(6), one F(11), one F(5), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(7)O3F3 octahedra, corners with four equivalent Fe(9)O3F3 octahedra,  an edgeedge with one Fe(5)O2F4 octahedra, and  an edgeedge with one Fe(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-55°. In the fifth Fe site, Fe(5) is bonded to one O(3), one O(7), one F(10), one F(11), one F(2), and one F(6) atom to form FeO2F4 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(9)O3F3 octahedra,  an edgeedge with one Fe(1)O2F4 octahedra, and  an edgeedge with one Fe(4)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-57°. In the sixth Fe site, Fe(6) is bonded to one O(4), one O(5), one O(8), one F(1), one F(4), and one F(7) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(1)O2F4 octahedra, corners with four equivalent Fe(2)O2F4 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(8)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. In the seventh Fe site, Fe(7) is bonded to one O(2), one O(6), one O(9), one F(3), one F(5), and one F(8) atom to form a mixture of corner and edge-sharing FeO3F3 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(5), one O(9), one F(3), one F(4), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(2)O2F4 octahedra, corners with four equivalent Fe(3)O3F3 octahedra,  an edgeedge with one Fe(6)O3F3 octahedra, and  an edgeedge with one Fe(7)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the ninth Fe site, Fe(9) is bonded to one O(3), one O(6), one O(7), one F(11), one F(5), and one F(6) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(5)O2F4 octahedra, corners with four equivalent Fe(4)O3F3 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(7)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-57°. In the tenth Fe site, Fe(10) is bonded to one O(4), one O(7), one O(8), one F(10), one F(2), and one F(6) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(1)O2F4 octahedra, corners with four equivalent Fe(5)O2F4 octahedra,  an edgeedge with one Fe(6)O3F3 octahedra, and  an edgeedge with one Fe(9)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. There are nine 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 distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the fifth O site, O(5) is bonded in a 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 distorted 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 trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. There are eleven 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(5) 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(2), one Fe(6), and one Fe(8) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the sixth F site, F(6) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the eighth F site, F(8) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the ninth F site, F(9) is bonded in a distorted T-shaped geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the tenth F site, F(10) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the eleventh F site, F(11) is bonded in a distorted T-shaped geometry to one Fe(4), one Fe(5), and one Fe(9) atom. is represented by the CIF card [CIF]
data_Fe10O9F11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.763
_cell_length_b   4.770
_cell_length_c   15.518
_cell_angle_alpha   89.976
_cell_angle_beta   89.959
_cell_angle_gamma   88.720
_symmetry_Int_Tables_number   1
_cell_volume   352.475
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Fe  Fe0  1  0.987  0.011  0.999  1.0
  Fe  Fe1  1  0.041  0.977  0.794  1.0
  Fe  Fe2  1  0.988  0.057  0.599  1.0
  Fe  Fe3  1  0.050  0.997  0.403  1.0
  Fe  Fe4  1  0.033  0.987  0.206  1.0
  Fe  Fe5  1  0.489  0.517  0.907  1.0
  Fe  Fe6  1  0.482  0.483  0.500  1.0
  Fe  Fe7  1  0.480  0.476  0.702  1.0
  Fe  Fe8  1  0.456  0.495  0.299  1.0
  Fe  Fe9  1  0.490  0.517  0.092  1.0
  O  O10  1  0.189  0.192  0.699  1.0
  O  O11  1  0.191  0.199  0.501  1.0
  O  O12  1  0.198  0.183  0.301  1.0
  O  O13  1  0.297  0.708  0.999  1.0
  O  O14  1  0.316  0.682  0.799  1.0
  O  O15  1  0.316  0.684  0.402  1.0
  O  O16  1  0.309  0.687  0.199  1.0
  O  O17  1  0.685  0.320  0.999  1.0
  O  O18  1  0.678  0.323  0.600  1.0
  F  F19  1  0.200  0.196  0.892  1.0
  F  F20  1  0.194  0.200  0.107  1.0
  F  F21  1  0.290  0.708  0.600  1.0
  F  F22  1  0.708  0.288  0.799  1.0
  F  F23  1  0.702  0.293  0.399  1.0
  F  F24  1  0.704  0.295  0.201  1.0
  F  F25  1  0.807  0.805  0.890  1.0
  F  F26  1  0.804  0.811  0.501  1.0
  F  F27  1  0.800  0.804  0.697  1.0
  F  F28  1  0.803  0.811  0.109  1.0
  F  F29  1  0.810  0.794  0.302  1.0
[/CIF]
.
The structure described by Fe10O9F11 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(4), one O(8), one F(1), one F(10), one F(2), and one F(7) atom to form FeO2F4 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(6)O3F3 octahedra,  an edgeedge with one Fe(2)O2F4 octahedra, and  an edgeedge with one Fe(5)O2F4 octahedra. The corner-sharing octahedral tilt angles range from 48-60°. In the second Fe site, Fe(2) is bonded to one O(1), one O(5), one F(1), one F(4), one F(7), and one F(9) atom to form FeO2F4 octahedra that share corners with four equivalent Fe(6)O3F3 octahedra, corners with four equivalent Fe(8)O3F3 octahedra,  an edgeedge with one Fe(1)O2F4 octahedra, and  an edgeedge with one Fe(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-53°. In the third Fe site, Fe(3) is bonded to one O(1), one O(2), one O(9), one F(3), one F(8), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(7)O3F3 octahedra, corners with four equivalent Fe(8)O3F3 octahedra,  an edgeedge with one Fe(2)O2F4 octahedra, and  an edgeedge with one Fe(4)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the fourth Fe site, Fe(4) is bonded to one O(2), one O(3), one O(6), one F(11), one F(5), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(7)O3F3 octahedra, corners with four equivalent Fe(9)O3F3 octahedra,  an edgeedge with one Fe(5)O2F4 octahedra, and  an edgeedge with one Fe(3)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-55°. In the fifth Fe site, Fe(5) is bonded to one O(3), one O(7), one F(10), one F(11), one F(2), and one F(6) atom to form FeO2F4 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(9)O3F3 octahedra,  an edgeedge with one Fe(1)O2F4 octahedra, and  an edgeedge with one Fe(4)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-57°. In the sixth Fe site, Fe(6) is bonded to one O(4), one O(5), one O(8), one F(1), one F(4), and one F(7) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(1)O2F4 octahedra, corners with four equivalent Fe(2)O2F4 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(8)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. In the seventh Fe site, Fe(7) is bonded to one O(2), one O(6), one O(9), one F(3), one F(5), and one F(8) atom to form a mixture of corner and edge-sharing FeO3F3 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(5), one O(9), one F(3), one F(4), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(2)O2F4 octahedra, corners with four equivalent Fe(3)O3F3 octahedra,  an edgeedge with one Fe(6)O3F3 octahedra, and  an edgeedge with one Fe(7)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the ninth Fe site, Fe(9) is bonded to one O(3), one O(6), one O(7), one F(11), one F(5), and one F(6) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(5)O2F4 octahedra, corners with four equivalent Fe(4)O3F3 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(7)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-57°. In the tenth Fe site, Fe(10) is bonded to one O(4), one O(7), one O(8), one F(10), one F(2), and one F(6) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(1)O2F4 octahedra, corners with four equivalent Fe(5)O2F4 octahedra,  an edgeedge with one Fe(6)O3F3 octahedra, and  an edgeedge with one Fe(9)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. There are nine 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 distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the fifth O site, O(5) is bonded in a 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 distorted 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 trigonal planar geometry to one Fe(3), one Fe(7), and one Fe(8) atom. There are eleven 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(5) 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(2), one Fe(6), and one Fe(8) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the sixth F site, F(6) is bonded in a distorted trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the eighth F site, F(8) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the ninth F site, F(9) is bonded in a distorted T-shaped geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the tenth F site, F(10) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the eleventh F site, F(11) is bonded in a distorted T-shaped geometry to one Fe(4), one Fe(5), and one Fe(9) atom. is represented by the CIF card [CIF]
data_Fe10O9F11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.763
_cell_length_b   4.770
_cell_length_c   15.518
_cell_angle_alpha   89.976
_cell_angle_beta   89.959
_cell_angle_gamma   88.720
_symmetry_Int_Tables_number   1
_cell_volume   352.475
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Fe  Fe0  1  0.987  0.011  0.999  1.0
  Fe  Fe1  1  0.041  0.977  0.794  1.0
  Fe  Fe2  1  0.988  0.057  0.599  1.0
  Fe  Fe3  1  0.050  0.997  0.403  1.0
  Fe  Fe4  1  0.033  0.987  0.206  1.0
  Fe  Fe5  1  0.489  0.517  0.907  1.0
  Fe  Fe6  1  0.482  0.483  0.500  1.0
  Fe  Fe7  1  0.480  0.476  0.702  1.0
  Fe  Fe8  1  0.456  0.495  0.299  1.0
  Fe  Fe9  1  0.490  0.517  0.092  1.0
  O  O10  1  0.189  0.192  0.699  1.0
  O  O11  1  0.191  0.199  0.501  1.0
  O  O12  1  0.198  0.183  0.301  1.0
  O  O13  1  0.297  0.708  0.999  1.0
  O  O14  1  0.316  0.682  0.799  1.0
  O  O15  1  0.316  0.684  0.402  1.0
  O  O16  1  0.309  0.687  0.199  1.0
  O  O17  1  0.685  0.320  0.999  1.0
  O  O18  1  0.678  0.323  0.600  1.0
  F  F19  1  0.200  0.196  0.892  1.0
  F  F20  1  0.194  0.200  0.107  1.0
  F  F21  1  0.290  0.708  0.600  1.0
  F  F22  1  0.708  0.288  0.799  1.0
  F  F23  1  0.702  0.293  0.399  1.0
  F  F24  1  0.704  0.295  0.201  1.0
  F  F25  1  0.807  0.805  0.890  1.0
  F  F26  1  0.804  0.811  0.501  1.0
  F  F27  1  0.800  0.804  0.697  1.0
  F  F28  1  0.803  0.811  0.109  1.0
  F  F29  1  0.810  0.794  0.302  1.0
[/CIF]
.