The crystal structure described by Fe4O5F3 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(3), two equivalent O(5), one F(1), and one F(2) atom to form FeO4F2 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(4)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(4), one F(1), and two equivalent F(3) atoms to form FeO3F3 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the third Fe site, Fe(3) is bonded to one O(1), one O(3), two equivalent O(4), one F(1), and one F(3) atom to form FeO4F2 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(2)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent F(2) atoms to form FeO4F2 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 47-53°. There are five 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(4) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(4) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(2) and two equivalent Fe(3) atoms. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Fe(4) and two equivalent Fe(1) atoms. There are three 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(3) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Fe(1) and two equivalent Fe(4) atoms. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Fe(3) and two equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe4O5F3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.724
_cell_length_b   6.093
_cell_length_c   9.916
_cell_angle_alpha   72.152
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   271.664
_cell_formula_units_Z   2
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  0.449  0.678  0.386  1.0
  Fe  Fe1  1  0.525  0.438  0.866  1.0
  Fe  Fe2  1  0.506  0.940  0.877  1.0
  Fe  Fe3  1  0.517  0.200  0.353  1.0
  Fe  Fe4  1  0.017  0.800  0.647  1.0
  Fe  Fe5  1  0.025  0.562  0.134  1.0
  Fe  Fe6  1  0.949  0.322  0.614  1.0
  Fe  Fe7  1  0.006  0.060  0.123  1.0
  O  O8  1  0.825  0.268  0.211  1.0
  O  O9  1  0.803  0.514  0.724  1.0
  O  O10  1  0.804  0.016  0.723  1.0
  O  O11  1  0.699  0.141  0.969  1.0
  O  O12  1  0.672  0.391  0.465  1.0
  O  O13  1  0.325  0.732  0.789  1.0
  O  O14  1  0.303  0.486  0.276  1.0
  O  O15  1  0.304  0.984  0.277  1.0
  O  O16  1  0.199  0.859  0.031  1.0
  O  O17  1  0.172  0.609  0.535  1.0
  F  F18  1  0.798  0.762  0.226  1.0
  F  F19  1  0.689  0.892  0.472  1.0
  F  F20  1  0.713  0.635  0.981  1.0
  F  F21  1  0.298  0.238  0.774  1.0
  F  F22  1  0.213  0.365  0.019  1.0
  F  F23  1  0.189  0.108  0.528  1.0
[/CIF]
.
The crystal structure described by Fe4O5F3 is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(3), two equivalent O(5), one F(1), and one F(2) atom to form FeO4F2 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(4)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(4), one F(1), and two equivalent F(3) atoms to form FeO3F3 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(3)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the third Fe site, Fe(3) is bonded to one O(1), one O(3), two equivalent O(4), one F(1), and one F(3) atom to form FeO4F2 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(2)O3F3 octahedra. The corner-sharing octahedral tilt angles range from 47-52°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent F(2) atoms to form FeO4F2 octahedra that share corners with two equivalent Fe(2)O3F3 octahedra, corners with two equivalent Fe(1)O4F2 octahedra, corners with two equivalent Fe(3)O4F2 octahedra, corners with two equivalent Fe(4)O4F2 octahedra, and edges with two equivalent Fe(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 47-53°. There are five 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(4) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(4) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(2) and two equivalent Fe(3) atoms. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Fe(4) and two equivalent Fe(1) atoms. There are three 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(3) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Fe(1) and two equivalent Fe(4) atoms. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Fe(3) and two equivalent Fe(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe4O5F3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.724
_cell_length_b   6.093
_cell_length_c   9.916
_cell_angle_alpha   72.152
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   271.664
_cell_formula_units_Z   2
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  0.449  0.678  0.386  1.0
  Fe  Fe1  1  0.525  0.438  0.866  1.0
  Fe  Fe2  1  0.506  0.940  0.877  1.0
  Fe  Fe3  1  0.517  0.200  0.353  1.0
  Fe  Fe4  1  0.017  0.800  0.647  1.0
  Fe  Fe5  1  0.025  0.562  0.134  1.0
  Fe  Fe6  1  0.949  0.322  0.614  1.0
  Fe  Fe7  1  0.006  0.060  0.123  1.0
  O  O8  1  0.825  0.268  0.211  1.0
  O  O9  1  0.803  0.514  0.724  1.0
  O  O10  1  0.804  0.016  0.723  1.0
  O  O11  1  0.699  0.141  0.969  1.0
  O  O12  1  0.672  0.391  0.465  1.0
  O  O13  1  0.325  0.732  0.789  1.0
  O  O14  1  0.303  0.486  0.276  1.0
  O  O15  1  0.304  0.984  0.277  1.0
  O  O16  1  0.199  0.859  0.031  1.0
  O  O17  1  0.172  0.609  0.535  1.0
  F  F18  1  0.798  0.762  0.226  1.0
  F  F19  1  0.689  0.892  0.472  1.0
  F  F20  1  0.713  0.635  0.981  1.0
  F  F21  1  0.298  0.238  0.774  1.0
  F  F22  1  0.213  0.365  0.019  1.0
  F  F23  1  0.189  0.108  0.528  1.0
[/CIF]
.