The material described by FeO is Halite, Rock Salt structured and crystallizes in the triclinic P-1 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 edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. In the second Fe site, Fe(2) is bonded to six equivalent O(1) atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. O(1) is bonded to three equivalent Fe(1) and three equivalent Fe(2) atoms to form a mixture of edge and corner-sharing OFe6 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_FeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.067
_cell_length_b   3.084
_cell_length_c   3.131
_cell_angle_alpha   60.800
_cell_angle_beta   60.783
_cell_angle_gamma   89.872
_symmetry_Int_Tables_number   1
_cell_volume   21.457
_cell_formula_units_Z   1
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  1.000  1.000  0.000  1.0
  O  O1  1  0.500  0.500  1.000  1.0
[/CIF]
.
The material described by FeO is Halite, Rock Salt structured and crystallizes in the triclinic P-1 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 edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. In the second Fe site, Fe(2) is bonded to six equivalent O(1) atoms to form a mixture of edge and corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 5-6°. O(1) is bonded to three equivalent Fe(1) and three equivalent Fe(2) atoms to form a mixture of edge and corner-sharing OFe6 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_FeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.067
_cell_length_b   3.084
_cell_length_c   3.131
_cell_angle_alpha   60.800
_cell_angle_beta   60.783
_cell_angle_gamma   89.872
_symmetry_Int_Tables_number   1
_cell_volume   21.457
_cell_formula_units_Z   1
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  1.000  1.000  0.000  1.0
  O  O1  1  0.500  0.500  1.000  1.0
[/CIF]
.