The crystal structure described by NaO2 is Ilmenite-derived structured and crystallizes in the orthorhombic Pbca space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Na(1) and one O(2) atom to form a mixture of corner and edge-sharing ONa3O trigonal pyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one O(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.088
_cell_length_b   6.334
_cell_length_c   9.145
_cell_angle_alpha   90.001
_cell_angle_beta   89.997
_cell_angle_gamma   90.005
_symmetry_Int_Tables_number   1
_cell_volume   294.729
_cell_formula_units_Z   8
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
  Na  Na0  1  0.332  0.726  0.621  1.0
  Na  Na1  1  0.832  0.774  0.379  1.0
  Na  Na2  1  0.668  0.226  0.879  1.0
  Na  Na3  1  0.168  0.274  0.121  1.0
  Na  Na4  1  0.668  0.274  0.379  1.0
  Na  Na5  1  0.168  0.226  0.621  1.0
  Na  Na6  1  0.332  0.774  0.121  1.0
  Na  Na7  1  0.832  0.726  0.879  1.0
  O  O8  1  0.276  0.028  0.931  1.0
  O  O9  1  0.776  0.472  0.069  1.0
  O  O10  1  0.724  0.528  0.569  1.0
  O  O11  1  0.224  0.972  0.431  1.0
  O  O12  1  0.724  0.972  0.069  1.0
  O  O13  1  0.224  0.528  0.931  1.0
  O  O14  1  0.276  0.472  0.431  1.0
  O  O15  1  0.776  0.028  0.569  1.0
  O  O16  1  0.576  0.036  0.664  1.0
  O  O17  1  0.076  0.464  0.336  1.0
  O  O18  1  0.424  0.536  0.836  1.0
  O  O19  1  0.924  0.964  0.164  1.0
  O  O20  1  0.424  0.964  0.336  1.0
  O  O21  1  0.924  0.536  0.664  1.0
  O  O22  1  0.576  0.464  0.164  1.0
  O  O23  1  0.076  0.036  0.836  1.0
[/CIF]
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The crystal structure described by NaO2 is Ilmenite-derived structured and crystallizes in the orthorhombic Pbca space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Na(1) and one O(2) atom to form a mixture of corner and edge-sharing ONa3O trigonal pyramids. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one O(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.088
_cell_length_b   6.334
_cell_length_c   9.145
_cell_angle_alpha   90.001
_cell_angle_beta   89.997
_cell_angle_gamma   90.005
_symmetry_Int_Tables_number   1
_cell_volume   294.729
_cell_formula_units_Z   8
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
  Na  Na0  1  0.332  0.726  0.621  1.0
  Na  Na1  1  0.832  0.774  0.379  1.0
  Na  Na2  1  0.668  0.226  0.879  1.0
  Na  Na3  1  0.168  0.274  0.121  1.0
  Na  Na4  1  0.668  0.274  0.379  1.0
  Na  Na5  1  0.168  0.226  0.621  1.0
  Na  Na6  1  0.332  0.774  0.121  1.0
  Na  Na7  1  0.832  0.726  0.879  1.0
  O  O8  1  0.276  0.028  0.931  1.0
  O  O9  1  0.776  0.472  0.069  1.0
  O  O10  1  0.724  0.528  0.569  1.0
  O  O11  1  0.224  0.972  0.431  1.0
  O  O12  1  0.724  0.972  0.069  1.0
  O  O13  1  0.224  0.528  0.931  1.0
  O  O14  1  0.276  0.472  0.431  1.0
  O  O15  1  0.776  0.028  0.569  1.0
  O  O16  1  0.576  0.036  0.664  1.0
  O  O17  1  0.076  0.464  0.336  1.0
  O  O18  1  0.424  0.536  0.836  1.0
  O  O19  1  0.924  0.964  0.164  1.0
  O  O20  1  0.424  0.964  0.336  1.0
  O  O21  1  0.924  0.536  0.664  1.0
  O  O22  1  0.576  0.464  0.164  1.0
  O  O23  1  0.076  0.036  0.836  1.0
[/CIF]
.