The crystal structure described by Na2FeO2 is Ilmenite-like structured and crystallizes in the orthorhombic Immm space group. Na(1) is bonded to four equivalent O(1) atoms to form a mixture of distorted edge and corner-sharing NaO4 trigonal pyramids. Fe(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded to four equivalent Na(1) and two equivalent Fe(1) atoms to form a mixture of edge and corner-sharing ONa4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-25°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2FeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.966
_cell_length_b   4.567
_cell_length_c   5.637
_cell_angle_alpha   113.821
_cell_angle_beta   105.245
_cell_angle_gamma   90.030
_symmetry_Int_Tables_number   1
_cell_volume   66.904
_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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.314  0.314  0.629  1.0
  Na  Na2  1  0.686  0.686  0.371  1.0
  O  O3  1  0.635  0.136  0.271  1.0
  O  O4  1  0.365  0.864  0.729  1.0
[/CIF]
.
The crystal structure described by Na2FeO2 is Ilmenite-like structured and crystallizes in the orthorhombic Immm space group. Na(1) is bonded to four equivalent O(1) atoms to form a mixture of distorted edge and corner-sharing NaO4 trigonal pyramids. Fe(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded to four equivalent Na(1) and two equivalent Fe(1) atoms to form a mixture of edge and corner-sharing ONa4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-25°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2FeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.966
_cell_length_b   4.567
_cell_length_c   5.637
_cell_angle_alpha   113.821
_cell_angle_beta   105.245
_cell_angle_gamma   90.030
_symmetry_Int_Tables_number   1
_cell_volume   66.904
_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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.314  0.314  0.629  1.0
  Na  Na2  1  0.686  0.686  0.371  1.0
  O  O3  1  0.635  0.136  0.271  1.0
  O  O4  1  0.365  0.864  0.729  1.0
[/CIF]
.