The material structure described by FeO2 is trigonal omega-like structured and crystallizes in the tetragonal I4_1/amd space group. Fe(1) is bonded to six equivalent O(1) atoms to form edge-sharing FeO6 octahedra. O(1) is bonded in a distorted T-shaped geometry to three equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_FeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.876
_cell_length_b   5.876
_cell_length_c   5.876
_cell_angle_alpha   118.159
_cell_angle_beta   118.159
_cell_angle_gamma   93.219
_symmetry_Int_Tables_number   1
_cell_volume   147.238
_cell_formula_units_Z   4
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  0.875  0.625  0.250  1.0
  Fe  Fe1  1  0.375  0.625  0.750  1.0
  Fe  Fe2  1  0.375  0.125  0.750  1.0
  Fe  Fe3  1  0.375  0.625  0.250  1.0
  O  O4  1  0.144  0.868  0.724  1.0
  O  O5  1  0.580  0.856  0.724  1.0
  O  O6  1  0.606  0.382  0.776  1.0
  O  O7  1  0.618  0.394  0.224  1.0
  O  O8  1  0.170  0.394  0.776  1.0
  O  O9  1  0.606  0.830  0.224  1.0
  O  O10  1  0.132  0.856  0.276  1.0
  O  O11  1  0.144  0.420  0.276  1.0
[/CIF]
.
The material structure described by FeO2 is trigonal omega-like structured and crystallizes in the tetragonal I4_1/amd space group. Fe(1) is bonded to six equivalent O(1) atoms to form edge-sharing FeO6 octahedra. O(1) is bonded in a distorted T-shaped geometry to three equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_FeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.876
_cell_length_b   5.876
_cell_length_c   5.876
_cell_angle_alpha   118.159
_cell_angle_beta   118.159
_cell_angle_gamma   93.219
_symmetry_Int_Tables_number   1
_cell_volume   147.238
_cell_formula_units_Z   4
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  0.875  0.625  0.250  1.0
  Fe  Fe1  1  0.375  0.625  0.750  1.0
  Fe  Fe2  1  0.375  0.125  0.750  1.0
  Fe  Fe3  1  0.375  0.625  0.250  1.0
  O  O4  1  0.144  0.868  0.724  1.0
  O  O5  1  0.580  0.856  0.724  1.0
  O  O6  1  0.606  0.382  0.776  1.0
  O  O7  1  0.618  0.394  0.224  1.0
  O  O8  1  0.170  0.394  0.776  1.0
  O  O9  1  0.606  0.830  0.224  1.0
  O  O10  1  0.132  0.856  0.276  1.0
  O  O11  1  0.144  0.420  0.276  1.0
[/CIF]
.