The compound described by NaO2I crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six equivalent O(1) atoms to form edge-sharing NaO6 octahedra. O(1) is bonded to three equivalent Na(1) and two equivalent I(1) atoms to form a mixture of distorted edge and corner-sharing ONa3I2 trigonal bipyramids. I(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. is represented by the CIF file [CIF]
data_NaIO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.703
_cell_length_b   7.703
_cell_length_c   7.703
_cell_angle_alpha   130.673
_cell_angle_beta   130.673
_cell_angle_gamma   72.333
_symmetry_Int_Tables_number   1
_cell_volume   257.010
_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
  Na  Na0  1  0.875  0.625  0.250  1.0
  Na  Na1  1  0.375  0.625  0.750  1.0
  Na  Na2  1  0.375  0.625  0.250  1.0
  Na  Na3  1  0.375  0.125  0.750  1.0
  I  I4  1  0.375  0.125  0.250  1.0
  I  I5  1  0.875  0.125  0.750  1.0
  I  I6  1  0.875  0.125  0.250  1.0
  I  I7  1  0.875  0.625  0.750  1.0
  O  O8  1  0.168  0.390  0.221  1.0
  O  O9  1  0.168  0.947  0.779  1.0
  O  O10  1  0.140  0.418  0.721  1.0
  O  O11  1  0.582  0.860  0.279  1.0
  O  O12  1  0.697  0.418  0.279  1.0
  O  O13  1  0.582  0.303  0.721  1.0
  O  O14  1  0.610  0.832  0.779  1.0
  O  O15  1  0.053  0.832  0.221  1.0
[/CIF]
.
The compound described by NaO2I crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six equivalent O(1) atoms to form edge-sharing NaO6 octahedra. O(1) is bonded to three equivalent Na(1) and two equivalent I(1) atoms to form a mixture of distorted edge and corner-sharing ONa3I2 trigonal bipyramids. I(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. is represented by the CIF file [CIF]
data_NaIO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.703
_cell_length_b   7.703
_cell_length_c   7.703
_cell_angle_alpha   130.673
_cell_angle_beta   130.673
_cell_angle_gamma   72.333
_symmetry_Int_Tables_number   1
_cell_volume   257.010
_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
  Na  Na0  1  0.875  0.625  0.250  1.0
  Na  Na1  1  0.375  0.625  0.750  1.0
  Na  Na2  1  0.375  0.625  0.250  1.0
  Na  Na3  1  0.375  0.125  0.750  1.0
  I  I4  1  0.375  0.125  0.250  1.0
  I  I5  1  0.875  0.125  0.750  1.0
  I  I6  1  0.875  0.125  0.250  1.0
  I  I7  1  0.875  0.625  0.750  1.0
  O  O8  1  0.168  0.390  0.221  1.0
  O  O9  1  0.168  0.947  0.779  1.0
  O  O10  1  0.140  0.418  0.721  1.0
  O  O11  1  0.582  0.860  0.279  1.0
  O  O12  1  0.697  0.418  0.279  1.0
  O  O13  1  0.582  0.303  0.721  1.0
  O  O14  1  0.610  0.832  0.779  1.0
  O  O15  1  0.053  0.832  0.221  1.0
[/CIF]
.