The crystal structure described by Fe4O7F is Hydrophilite-derived structured and crystallizes in the monoclinic Pc space group. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(3)O5F octahedra, corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Fe(2)O5F octahedra,  an edgeedge with one Fe(3)O5F octahedra, and  an edgeedge with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. In the second Fe site, Fe(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(3)O5F octahedra, corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Fe(1)O5F octahedra,  an edgeedge with one Fe(3)O5F octahedra, and  an edgeedge with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. In the third Fe site, Fe(3) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), 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)O5F octahedra, corners with four equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(1)O5F octahedra, and  an edgeedge with one Fe(2)O5F octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 47-53°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the second O site, O(2) is bonded in a distorted 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), 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(1), one Fe(2), and one Fe(4) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(4) atom. F(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe4O7F
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.623
_cell_length_b   5.513
_cell_length_c   10.093
_cell_angle_alpha   84.354
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   256.016
_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  0.753  0.241  0.749  1.0
  Fe  Fe1  1  0.769  0.761  0.247  1.0
  Fe  Fe2  1  0.764  0.496  0.007  1.0
  Fe  Fe3  1  0.742  0.001  0.498  1.0
  Fe  Fe4  1  0.247  0.241  0.249  1.0
  Fe  Fe5  1  0.236  0.496  0.507  1.0
  Fe  Fe6  1  0.231  0.761  0.747  1.0
  Fe  Fe7  1  0.258  0.001  0.998  1.0
  O  O8  1  0.060  0.234  0.423  1.0
  O  O9  1  0.050  0.479  0.680  1.0
  O  O10  1  0.059  0.734  0.924  1.0
  O  O11  1  0.066  0.978  0.166  1.0
  O  O12  1  0.950  0.479  0.180  1.0
  O  O13  1  0.941  0.734  0.424  1.0
  O  O14  1  0.940  0.234  0.923  1.0
  O  O15  1  0.934  0.978  0.666  1.0
  O  O16  1  0.563  0.763  0.078  1.0
  O  O17  1  0.553  0.268  0.574  1.0
  O  O18  1  0.559  0.020  0.327  1.0
  O  O19  1  0.441  0.020  0.827  1.0
  O  O20  1  0.447  0.268  0.074  1.0
  O  O21  1  0.437  0.763  0.578  1.0
  F  F22  1  0.552  0.524  0.827  1.0
  F  F23  1  0.448  0.524  0.327  1.0
[/CIF]
.
The crystal structure described by Fe4O7F is Hydrophilite-derived structured and crystallizes in the monoclinic Pc space group. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(3)O5F octahedra, corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Fe(2)O5F octahedra,  an edgeedge with one Fe(3)O5F octahedra, and  an edgeedge with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. In the second Fe site, Fe(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and one F(1) atom to form FeO5F octahedra that share corners with two equivalent Fe(3)O5F octahedra, corners with two equivalent Fe(4)O6 octahedra, corners with four equivalent Fe(1)O5F octahedra,  an edgeedge with one Fe(3)O5F octahedra, and  an edgeedge with one Fe(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-54°. In the third Fe site, Fe(3) is bonded to one O(1), one O(2), one O(3), one O(5), one O(6), 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)O5F octahedra, corners with four equivalent Fe(4)O6 octahedra,  an edgeedge with one Fe(1)O5F octahedra, and  an edgeedge with one Fe(2)O5F octahedra. The corner-sharing octahedral tilt angles range from 48-53°. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form a mixture of corner and edge-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 47-53°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the second O site, O(2) is bonded in a distorted 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), 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(1), one Fe(2), and one Fe(4) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Fe(2), one Fe(3), and one Fe(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(3), and one Fe(4) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(4) atom. F(1) is bonded in a distorted trigonal planar geometry to one Fe(1), one Fe(2), and one Fe(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe4O7F
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.623
_cell_length_b   5.513
_cell_length_c   10.093
_cell_angle_alpha   84.354
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   256.016
_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  0.753  0.241  0.749  1.0
  Fe  Fe1  1  0.769  0.761  0.247  1.0
  Fe  Fe2  1  0.764  0.496  0.007  1.0
  Fe  Fe3  1  0.742  0.001  0.498  1.0
  Fe  Fe4  1  0.247  0.241  0.249  1.0
  Fe  Fe5  1  0.236  0.496  0.507  1.0
  Fe  Fe6  1  0.231  0.761  0.747  1.0
  Fe  Fe7  1  0.258  0.001  0.998  1.0
  O  O8  1  0.060  0.234  0.423  1.0
  O  O9  1  0.050  0.479  0.680  1.0
  O  O10  1  0.059  0.734  0.924  1.0
  O  O11  1  0.066  0.978  0.166  1.0
  O  O12  1  0.950  0.479  0.180  1.0
  O  O13  1  0.941  0.734  0.424  1.0
  O  O14  1  0.940  0.234  0.923  1.0
  O  O15  1  0.934  0.978  0.666  1.0
  O  O16  1  0.563  0.763  0.078  1.0
  O  O17  1  0.553  0.268  0.574  1.0
  O  O18  1  0.559  0.020  0.327  1.0
  O  O19  1  0.441  0.020  0.827  1.0
  O  O20  1  0.447  0.268  0.074  1.0
  O  O21  1  0.437  0.763  0.578  1.0
  F  F22  1  0.552  0.524  0.827  1.0
  F  F23  1  0.448  0.524  0.327  1.0
[/CIF]
.