The crystal structure described by Na3NO2 crystallizes in the tetragonal P4_2/mnm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Na site, Na(2) is bonded to two equivalent N(1), one O(1), and two equivalent O(2) atoms to form a mixture of corner and edge-sharing NaN2O3 trigonal bipyramids. N(1) is bonded in a rectangular see-saw-like geometry to four equivalent Na(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to two equivalent Na(1) and two equivalent Na(2) atoms. In the second O site, O(2) is bonded to two equivalent Na(1) and four equivalent Na(2) atoms to form corner-sharing ONa6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3NO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.205
_cell_length_b   6.717
_cell_length_c   6.717
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   415.332
_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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.265  0.249  0.251  1.0
  Na  Na2  1  0.235  0.251  0.751  1.0
  Na  Na3  1  0.235  0.749  0.249  1.0
  Na  Na4  1  0.265  0.751  0.749  1.0
  Na  Na5  1  0.500  0.000  0.000  1.0
  Na  Na6  1  0.500  0.500  0.500  1.0
  Na  Na7  1  0.735  0.249  0.251  1.0
  Na  Na8  1  0.765  0.251  0.751  1.0
  Na  Na9  1  0.765  0.749  0.249  1.0
  Na  Na10  1  0.735  0.751  0.749  1.0
  Na  Na11  1  0.000  0.500  0.500  1.0
  N  N12  1  0.740  0.500  0.000  1.0
  N  N13  1  0.760  0.000  0.500  1.0
  N  N14  1  0.240  0.000  0.500  1.0
  N  N15  1  0.260  0.500  0.000  1.0
  O  O16  1  0.000  0.658  0.158  1.0
  O  O17  1  0.250  0.500  0.500  1.0
  O  O18  1  0.250  0.000  0.000  1.0
  O  O19  1  0.500  0.842  0.658  1.0
  O  O20  1  0.500  0.158  0.342  1.0
  O  O21  1  0.750  0.000  0.000  1.0
  O  O22  1  0.750  0.500  0.500  1.0
  O  O23  1  0.000  0.342  0.842  1.0
[/CIF]
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The crystal structure described by Na3NO2 crystallizes in the tetragonal P4_2/mnm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Na site, Na(2) is bonded to two equivalent N(1), one O(1), and two equivalent O(2) atoms to form a mixture of corner and edge-sharing NaN2O3 trigonal bipyramids. N(1) is bonded in a rectangular see-saw-like geometry to four equivalent Na(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to two equivalent Na(1) and two equivalent Na(2) atoms. In the second O site, O(2) is bonded to two equivalent Na(1) and four equivalent Na(2) atoms to form corner-sharing ONa6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3NO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.205
_cell_length_b   6.717
_cell_length_c   6.717
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   415.332
_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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.265  0.249  0.251  1.0
  Na  Na2  1  0.235  0.251  0.751  1.0
  Na  Na3  1  0.235  0.749  0.249  1.0
  Na  Na4  1  0.265  0.751  0.749  1.0
  Na  Na5  1  0.500  0.000  0.000  1.0
  Na  Na6  1  0.500  0.500  0.500  1.0
  Na  Na7  1  0.735  0.249  0.251  1.0
  Na  Na8  1  0.765  0.251  0.751  1.0
  Na  Na9  1  0.765  0.749  0.249  1.0
  Na  Na10  1  0.735  0.751  0.749  1.0
  Na  Na11  1  0.000  0.500  0.500  1.0
  N  N12  1  0.740  0.500  0.000  1.0
  N  N13  1  0.760  0.000  0.500  1.0
  N  N14  1  0.240  0.000  0.500  1.0
  N  N15  1  0.260  0.500  0.000  1.0
  O  O16  1  0.000  0.658  0.158  1.0
  O  O17  1  0.250  0.500  0.500  1.0
  O  O18  1  0.250  0.000  0.000  1.0
  O  O19  1  0.500  0.842  0.658  1.0
  O  O20  1  0.500  0.158  0.342  1.0
  O  O21  1  0.750  0.000  0.000  1.0
  O  O22  1  0.750  0.500  0.500  1.0
  O  O23  1  0.000  0.342  0.842  1.0
[/CIF]
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