The crystal structure described by 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(1), one O(11), one O(5), one O(6), one F(2), and one F(8) atom to form a mixture of edge and corner-sharing FeO4F2 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(2), one F(1), one F(3), and one F(7) atom to form FeO3F3 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)O4F2 octahedra, and  an edgeedge with one Fe(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-57°. In the third Fe site, Fe(3) is bonded to one O(10), one O(2), one O(3), one O(7), one F(6), and one F(7) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(8)O3F3 octahedra, corners with four equivalent Fe(7)O4F2 octahedra,  an edgeedge with one Fe(2)O3F3 octahedra, and  an edgeedge with one Fe(4)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the fourth Fe site, Fe(4) is bonded to one O(3), one O(4), one O(8), one F(4), one F(6), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(9)O3F3 octahedra, corners with four equivalent Fe(7)O4F2 octahedra,  an edgeedge with one Fe(5)O3F3 octahedra, and  an edgeedge with one Fe(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 44-55°. In the fifth Fe site, Fe(5) is bonded to one O(4), one O(5), one O(9), one F(5), one F(8), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(9)O3F3 octahedra,  an edgeedge with one Fe(4)O3F3 octahedra, and  an edgeedge with one Fe(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-57°. In the sixth Fe site, Fe(6) is bonded to one O(1), one O(11), one O(6), one F(1), one F(2), and one F(3) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(2)O3F3 octahedra, corners with four equivalent Fe(1)O4F2 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 44-57°. In the seventh Fe site, Fe(7) is bonded to one O(10), one O(3), one O(7), one O(8), one F(4), and one F(6) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(4)O3F3 octahedra, corners with four equivalent Fe(3)O4F2 octahedra,  an edgeedge with one Fe(8)O3F3 octahedra, and  an edgeedge with one Fe(9)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-56°. In the eighth Fe site, Fe(8) is bonded to one O(10), one O(2), one O(7), one F(1), one F(3), and one F(7) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(2)O3F3 octahedra, corners with four equivalent Fe(3)O4F2 octahedra,  an edgeedge with one Fe(6)O3F3 octahedra, and  an edgeedge with one Fe(7)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-62°. In the ninth Fe site, Fe(9) is bonded to one O(4), one O(8), one O(9), one F(4), one F(5), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(4)O3F3 octahedra, corners with four equivalent Fe(5)O3F3 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(7)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. In the tenth Fe site, Fe(10) is bonded to one O(5), one O(6), one O(9), one F(2), one F(5), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(5)O3F3 octahedra, corners with four equivalent Fe(1)O4F2 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 43-57°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(4), one Fe(5), and one Fe(9) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the eleventh O site, O(11) is bonded in a distorted 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 trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the third F site, F(3) is bonded in a trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the fourth F site, F(4) is bonded in a distorted T-shaped 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 T-shaped 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 trigonal planar 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. is represented by the CIF card [CIF]
data_Fe10O11F9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.706
_cell_length_b   4.708
_cell_length_c   15.497
_cell_angle_alpha   89.840
_cell_angle_beta   89.719
_cell_angle_gamma   89.454
_symmetry_Int_Tables_number   1
_cell_volume   343.271
_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  0.993  0.969  0.994  1.0
  Fe  Fe1  1  0.017  0.993  0.806  1.0
  Fe  Fe2  1  0.026  0.984  0.602  1.0
  Fe  Fe3  1  0.999  0.960  0.401  1.0
  Fe  Fe4  1  0.006  0.960  0.198  1.0
  Fe  Fe5  1  0.520  0.499  0.903  1.0
  Fe  Fe6  1  0.496  0.526  0.505  1.0
  Fe  Fe7  1  0.483  0.520  0.690  1.0
  Fe  Fe8  1  0.506  0.540  0.302  1.0
  Fe  Fe9  1  0.501  0.540  0.101  1.0
  O  O10  1  0.209  0.792  0.897  1.0
  O  O11  1  0.195  0.817  0.705  1.0
  O  O12  1  0.192  0.808  0.501  1.0
  O  O13  1  0.186  0.803  0.300  1.0
  O  O14  1  0.186  0.805  0.096  1.0
  O  O15  1  0.692  0.686  0.999  1.0
  O  O16  1  0.703  0.706  0.601  1.0
  O  O17  1  0.687  0.694  0.403  1.0
  O  O18  1  0.688  0.698  0.200  1.0
  O  O19  1  0.304  0.306  0.599  1.0
  O  O20  1  0.809  0.192  0.897  1.0
  F  F21  1  0.697  0.691  0.797  1.0
  F  F22  1  0.303  0.298  0.001  1.0
  F  F23  1  0.316  0.313  0.799  1.0
  F  F24  1  0.297  0.301  0.400  1.0
  F  F25  1  0.296  0.302  0.199  1.0
  F  F26  1  0.804  0.199  0.499  1.0
  F  F27  1  0.803  0.205  0.705  1.0
  F  F28  1  0.794  0.197  0.099  1.0
  F  F29  1  0.795  0.198  0.301  1.0
[/CIF]
.
The crystal structure described by 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(1), one O(11), one O(5), one O(6), one F(2), and one F(8) atom to form a mixture of edge and corner-sharing FeO4F2 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the second Fe site, Fe(2) is bonded to one O(1), one O(11), one O(2), one F(1), one F(3), and one F(7) atom to form FeO3F3 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)O4F2 octahedra, and  an edgeedge with one Fe(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-57°. In the third Fe site, Fe(3) is bonded to one O(10), one O(2), one O(3), one O(7), one F(6), and one F(7) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(8)O3F3 octahedra, corners with four equivalent Fe(7)O4F2 octahedra,  an edgeedge with one Fe(2)O3F3 octahedra, and  an edgeedge with one Fe(4)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-62°. In the fourth Fe site, Fe(4) is bonded to one O(3), one O(4), one O(8), one F(4), one F(6), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(9)O3F3 octahedra, corners with four equivalent Fe(7)O4F2 octahedra,  an edgeedge with one Fe(5)O3F3 octahedra, and  an edgeedge with one Fe(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 44-55°. In the fifth Fe site, Fe(5) is bonded to one O(4), one O(5), one O(9), one F(5), one F(8), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(10)O3F3 octahedra, corners with four equivalent Fe(9)O3F3 octahedra,  an edgeedge with one Fe(4)O3F3 octahedra, and  an edgeedge with one Fe(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 46-57°. In the sixth Fe site, Fe(6) is bonded to one O(1), one O(11), one O(6), one F(1), one F(2), and one F(3) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(2)O3F3 octahedra, corners with four equivalent Fe(1)O4F2 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 44-57°. In the seventh Fe site, Fe(7) is bonded to one O(10), one O(3), one O(7), one O(8), one F(4), and one F(6) atom to form FeO4F2 octahedra that share corners with four equivalent Fe(4)O3F3 octahedra, corners with four equivalent Fe(3)O4F2 octahedra,  an edgeedge with one Fe(8)O3F3 octahedra, and  an edgeedge with one Fe(9)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 44-56°. In the eighth Fe site, Fe(8) is bonded to one O(10), one O(2), one O(7), one F(1), one F(3), and one F(7) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(2)O3F3 octahedra, corners with four equivalent Fe(3)O4F2 octahedra,  an edgeedge with one Fe(6)O3F3 octahedra, and  an edgeedge with one Fe(7)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 42-62°. In the ninth Fe site, Fe(9) is bonded to one O(4), one O(8), one O(9), one F(4), one F(5), and one F(9) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(4)O3F3 octahedra, corners with four equivalent Fe(5)O3F3 octahedra,  an edgeedge with one Fe(10)O3F3 octahedra, and  an edgeedge with one Fe(7)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. In the tenth Fe site, Fe(10) is bonded to one O(5), one O(6), one O(9), one F(2), one F(5), and one F(8) atom to form FeO3F3 octahedra that share corners with four equivalent Fe(5)O3F3 octahedra, corners with four equivalent Fe(1)O4F2 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 43-57°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(6) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(8) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(3), one Fe(4), and one Fe(7) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(4), one Fe(5), and one Fe(9) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(5) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Fe(4), one Fe(7), and one Fe(9) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Fe(10), one Fe(5), and one Fe(9) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Fe(3), one Fe(7), and one Fe(8) atom. In the eleventh O site, O(11) is bonded in a distorted 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 trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Fe(1), one Fe(10), and one Fe(6) atom. In the third F site, F(3) is bonded in a trigonal planar geometry to one Fe(2), one Fe(6), and one Fe(8) atom. In the fourth F site, F(4) is bonded in a distorted T-shaped 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 T-shaped 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 trigonal planar 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. is represented by the CIF card [CIF]
data_Fe10O11F9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.706
_cell_length_b   4.708
_cell_length_c   15.497
_cell_angle_alpha   89.840
_cell_angle_beta   89.719
_cell_angle_gamma   89.454
_symmetry_Int_Tables_number   1
_cell_volume   343.271
_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  0.993  0.969  0.994  1.0
  Fe  Fe1  1  0.017  0.993  0.806  1.0
  Fe  Fe2  1  0.026  0.984  0.602  1.0
  Fe  Fe3  1  0.999  0.960  0.401  1.0
  Fe  Fe4  1  0.006  0.960  0.198  1.0
  Fe  Fe5  1  0.520  0.499  0.903  1.0
  Fe  Fe6  1  0.496  0.526  0.505  1.0
  Fe  Fe7  1  0.483  0.520  0.690  1.0
  Fe  Fe8  1  0.506  0.540  0.302  1.0
  Fe  Fe9  1  0.501  0.540  0.101  1.0
  O  O10  1  0.209  0.792  0.897  1.0
  O  O11  1  0.195  0.817  0.705  1.0
  O  O12  1  0.192  0.808  0.501  1.0
  O  O13  1  0.186  0.803  0.300  1.0
  O  O14  1  0.186  0.805  0.096  1.0
  O  O15  1  0.692  0.686  0.999  1.0
  O  O16  1  0.703  0.706  0.601  1.0
  O  O17  1  0.687  0.694  0.403  1.0
  O  O18  1  0.688  0.698  0.200  1.0
  O  O19  1  0.304  0.306  0.599  1.0
  O  O20  1  0.809  0.192  0.897  1.0
  F  F21  1  0.697  0.691  0.797  1.0
  F  F22  1  0.303  0.298  0.001  1.0
  F  F23  1  0.316  0.313  0.799  1.0
  F  F24  1  0.297  0.301  0.400  1.0
  F  F25  1  0.296  0.302  0.199  1.0
  F  F26  1  0.804  0.199  0.499  1.0
  F  F27  1  0.803  0.205  0.705  1.0
  F  F28  1  0.794  0.197  0.099  1.0
  F  F29  1  0.795  0.198  0.301  1.0
[/CIF]
.