The crystal structure described by FeOF is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), two equivalent O(3), one F(3), and two equivalent F(1) atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one F(1), one F(2), and one F(3) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. In the third Fe site, Fe(3) is bonded to one O(2), two equivalent O(1), one F(3), and two equivalent F(2) atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(2) and two equivalent Fe(3) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(3) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(2) 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(2) and two equivalent Fe(1) atoms. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Fe(2) and two equivalent Fe(3) atoms. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(3) atom. is represented by the CIF file [CIF]
data_FeOF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.766
_cell_length_b   4.763
_cell_length_c   9.231
_cell_angle_alpha   89.952
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   209.567
_cell_formula_units_Z   6
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  0.962  0.287  0.583  1.0
  Fe  Fe1  1  0.027  0.221  0.251  1.0
  Fe  Fe2  1  0.007  0.203  0.916  1.0
  Fe  Fe3  1  0.527  0.779  0.749  1.0
  Fe  Fe4  1  0.462  0.713  0.417  1.0
  Fe  Fe5  1  0.507  0.797  0.084  1.0
  O  O6  1  0.823  0.055  0.087  1.0
  O  O7  1  0.812  0.068  0.746  1.0
  O  O8  1  0.323  0.945  0.913  1.0
  O  O9  1  0.312  0.932  0.254  1.0
  O  O10  1  0.674  0.571  0.583  1.0
  O  O11  1  0.174  0.429  0.417  1.0
  F  F12  1  0.789  0.050  0.417  1.0
  F  F13  1  0.289  0.950  0.583  1.0
  F  F14  1  0.712  0.557  0.919  1.0
  F  F15  1  0.695  0.543  0.249  1.0
  F  F16  1  0.195  0.457  0.751  1.0
  F  F17  1  0.212  0.443  0.081  1.0
[/CIF]
.
The crystal structure described by FeOF is Hydrophilite-derived structured and crystallizes in the monoclinic P2_1 space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), two equivalent O(3), one F(3), and two equivalent F(1) atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one F(1), one F(2), and one F(3) atom to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. In the third Fe site, Fe(3) is bonded to one O(2), two equivalent O(1), one F(3), and two equivalent F(2) atoms to form a mixture of edge and corner-sharing FeO3F3 octahedra. The corner-sharing octahedral tilt angles range from 45-56°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(2) and two equivalent Fe(3) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(3) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Fe(2) 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(2) and two equivalent Fe(1) atoms. In the second F site, F(2) is bonded in a distorted T-shaped geometry to one Fe(2) and two equivalent Fe(3) atoms. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(3) atom. is represented by the CIF file [CIF]
data_FeOF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.766
_cell_length_b   4.763
_cell_length_c   9.231
_cell_angle_alpha   89.952
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   209.567
_cell_formula_units_Z   6
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  0.962  0.287  0.583  1.0
  Fe  Fe1  1  0.027  0.221  0.251  1.0
  Fe  Fe2  1  0.007  0.203  0.916  1.0
  Fe  Fe3  1  0.527  0.779  0.749  1.0
  Fe  Fe4  1  0.462  0.713  0.417  1.0
  Fe  Fe5  1  0.507  0.797  0.084  1.0
  O  O6  1  0.823  0.055  0.087  1.0
  O  O7  1  0.812  0.068  0.746  1.0
  O  O8  1  0.323  0.945  0.913  1.0
  O  O9  1  0.312  0.932  0.254  1.0
  O  O10  1  0.674  0.571  0.583  1.0
  O  O11  1  0.174  0.429  0.417  1.0
  F  F12  1  0.789  0.050  0.417  1.0
  F  F13  1  0.289  0.950  0.583  1.0
  F  F14  1  0.712  0.557  0.919  1.0
  F  F15  1  0.695  0.543  0.249  1.0
  F  F16  1  0.195  0.457  0.751  1.0
  F  F17  1  0.212  0.443  0.081  1.0
[/CIF]
.