The material structure described by FeO is Moissanite-4H structured and crystallizes in the monoclinic Cc space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1) and three equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. In the second Fe site, Fe(2) is bonded to one O(2) and three equivalent O(1) atoms to form corner-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Fe(1) and three equivalent Fe(2) atoms to form corner-sharing OFe4 tetrahedra. In the second O site, O(2) is bonded to one Fe(2) and three equivalent Fe(1) atoms to form corner-sharing OFe4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_FeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.414
_cell_length_b   3.414
_cell_length_c   10.536
_cell_angle_alpha   89.849
_cell_angle_beta   89.849
_cell_angle_gamma   119.712
_symmetry_Int_Tables_number   1
_cell_volume   106.639
_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  0.337  0.673  0.026  1.0
  Fe  Fe1  1  0.991  0.979  0.773  1.0
  Fe  Fe2  1  0.979  0.991  0.273  1.0
  Fe  Fe3  1  0.673  0.337  0.526  1.0
  O  O4  1  0.334  0.664  0.225  1.0
  O  O5  1  0.007  0.015  0.476  1.0
  O  O6  1  0.015  0.007  0.976  1.0
  O  O7  1  0.664  0.334  0.725  1.0
[/CIF]
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The material structure described by FeO is Moissanite-4H structured and crystallizes in the monoclinic Cc space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1) and three equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. In the second Fe site, Fe(2) is bonded to one O(2) and three equivalent O(1) atoms to form corner-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Fe(1) and three equivalent Fe(2) atoms to form corner-sharing OFe4 tetrahedra. In the second O site, O(2) is bonded to one Fe(2) and three equivalent Fe(1) atoms to form corner-sharing OFe4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_FeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.414
_cell_length_b   3.414
_cell_length_c   10.536
_cell_angle_alpha   89.849
_cell_angle_beta   89.849
_cell_angle_gamma   119.712
_symmetry_Int_Tables_number   1
_cell_volume   106.639
_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  0.337  0.673  0.026  1.0
  Fe  Fe1  1  0.991  0.979  0.773  1.0
  Fe  Fe2  1  0.979  0.991  0.273  1.0
  Fe  Fe3  1  0.673  0.337  0.526  1.0
  O  O4  1  0.334  0.664  0.225  1.0
  O  O5  1  0.007  0.015  0.476  1.0
  O  O6  1  0.015  0.007  0.976  1.0
  O  O7  1  0.664  0.334  0.725  1.0
[/CIF]
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