The structure described by FeO is Molybdenum Carbide MAX Phase-like structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to six equivalent O(1) atoms to form a mixture of corner, edge, and face-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. In the second Fe site, Fe(2) is bonded to six equivalent O(1) atoms to form a mixture of corner, edge, and face-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. O(1) is bonded to three equivalent Fe(1) and three equivalent Fe(2) atoms to form a mixture of distorted corner and edge-sharing OFe6 pentagonal pyramids. is represented by the CIF card [CIF]
data_FeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.049
_cell_length_b   5.299
_cell_length_c   6.179
_cell_angle_alpha   92.582
_cell_angle_beta   77.010
_cell_angle_gamma   30.408
_symmetry_Int_Tables_number   1
_cell_volume   43.079
_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  0.508  0.994  0.499  1.0
  Fe  Fe1  1  0.510  0.493  0.999  1.0
  O  O2  1  0.004  0.578  0.755  1.0
  O  O3  1  0.014  0.408  0.243  1.0
[/CIF]
.
The structure described by FeO is Molybdenum Carbide MAX Phase-like structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to six equivalent O(1) atoms to form a mixture of corner, edge, and face-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. In the second Fe site, Fe(2) is bonded to six equivalent O(1) atoms to form a mixture of corner, edge, and face-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 47-48°. O(1) is bonded to three equivalent Fe(1) and three equivalent Fe(2) atoms to form a mixture of distorted corner and edge-sharing OFe6 pentagonal pyramids. is represented by the CIF card [CIF]
data_FeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.049
_cell_length_b   5.299
_cell_length_c   6.179
_cell_angle_alpha   92.582
_cell_angle_beta   77.010
_cell_angle_gamma   30.408
_symmetry_Int_Tables_number   1
_cell_volume   43.079
_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  0.508  0.994  0.499  1.0
  Fe  Fe1  1  0.510  0.493  0.999  1.0
  O  O2  1  0.004  0.578  0.755  1.0
  O  O3  1  0.014  0.408  0.243  1.0
[/CIF]
.