The material described by NaNbO3 is Orthorhombic Perovskite-like structured and crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three equivalent O(3), and four equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(2) atoms. Nb(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles range from 21-31°. There are four inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to three equivalent Na(1) and two equivalent Nb(1) atoms. In the second O site, O(4) is bonded to two equivalent Na(2) and two equivalent Nb(1) atoms to form distorted corner-sharing ONa2Nb2 tetrahedra. In the third O site, O(1) is bonded in a 5-coordinate geometry to one Na(2), two equivalent Na(1), and two equivalent Nb(1) atoms. In the fourth O site, O(2) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(2), and two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaNbO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.525
_cell_length_b   5.611
_cell_length_c   15.547
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   481.971
_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  0.257  0.250  0.000  1.0
  Na  Na1  1  0.743  0.750  0.500  1.0
  Na  Na2  1  0.743  0.750  0.000  1.0
  Na  Na3  1  0.257  0.250  0.500  1.0
  Na  Na4  1  0.259  0.201  0.250  1.0
  Na  Na5  1  0.259  0.299  0.750  1.0
  Na  Na6  1  0.741  0.701  0.250  1.0
  Na  Na7  1  0.741  0.799  0.750  1.0
  Nb  Nb8  1  0.244  0.724  0.125  1.0
  Nb  Nb9  1  0.244  0.776  0.875  1.0
  Nb  Nb10  1  0.756  0.224  0.375  1.0
  Nb  Nb11  1  0.756  0.276  0.625  1.0
  Nb  Nb12  1  0.756  0.276  0.875  1.0
  Nb  Nb13  1  0.756  0.224  0.125  1.0
  Nb  Nb14  1  0.244  0.776  0.625  1.0
  Nb  Nb15  1  0.244  0.724  0.375  1.0
  O  O16  1  0.045  0.047  0.393  1.0
  O  O17  1  0.045  0.453  0.607  1.0
  O  O18  1  0.955  0.547  0.107  1.0
  O  O19  1  0.955  0.953  0.893  1.0
  O  O20  1  0.955  0.953  0.607  1.0
  O  O21  1  0.955  0.547  0.393  1.0
  O  O22  1  0.045  0.453  0.893  1.0
  O  O23  1  0.045  0.047  0.107  1.0
  O  O24  1  0.455  0.462  0.356  1.0
  O  O25  1  0.455  0.038  0.644  1.0
  O  O26  1  0.545  0.962  0.144  1.0
  O  O27  1  0.545  0.538  0.856  1.0
  O  O28  1  0.545  0.538  0.644  1.0
  O  O29  1  0.545  0.962  0.356  1.0
  O  O30  1  0.455  0.038  0.856  1.0
  O  O31  1  0.455  0.462  0.144  1.0
  O  O32  1  0.677  0.250  0.000  1.0
  O  O33  1  0.323  0.750  0.500  1.0
  O  O34  1  0.323  0.750  0.000  1.0
  O  O35  1  0.677  0.250  0.500  1.0
  O  O36  1  0.175  0.778  0.250  1.0
  O  O37  1  0.175  0.722  0.750  1.0
  O  O38  1  0.825  0.278  0.250  1.0
  O  O39  1  0.825  0.222  0.750  1.0
[/CIF]
.
The material described by NaNbO3 is Orthorhombic Perovskite-like structured and crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three equivalent O(3), and four equivalent O(1) atoms. In the second Na site, Na(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(2) atoms. Nb(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles range from 21-31°. There are four inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to three equivalent Na(1) and two equivalent Nb(1) atoms. In the second O site, O(4) is bonded to two equivalent Na(2) and two equivalent Nb(1) atoms to form distorted corner-sharing ONa2Nb2 tetrahedra. In the third O site, O(1) is bonded in a 5-coordinate geometry to one Na(2), two equivalent Na(1), and two equivalent Nb(1) atoms. In the fourth O site, O(2) is bonded in a 5-coordinate geometry to one Na(1), two equivalent Na(2), and two equivalent Nb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaNbO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.525
_cell_length_b   5.611
_cell_length_c   15.547
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   481.971
_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  0.257  0.250  0.000  1.0
  Na  Na1  1  0.743  0.750  0.500  1.0
  Na  Na2  1  0.743  0.750  0.000  1.0
  Na  Na3  1  0.257  0.250  0.500  1.0
  Na  Na4  1  0.259  0.201  0.250  1.0
  Na  Na5  1  0.259  0.299  0.750  1.0
  Na  Na6  1  0.741  0.701  0.250  1.0
  Na  Na7  1  0.741  0.799  0.750  1.0
  Nb  Nb8  1  0.244  0.724  0.125  1.0
  Nb  Nb9  1  0.244  0.776  0.875  1.0
  Nb  Nb10  1  0.756  0.224  0.375  1.0
  Nb  Nb11  1  0.756  0.276  0.625  1.0
  Nb  Nb12  1  0.756  0.276  0.875  1.0
  Nb  Nb13  1  0.756  0.224  0.125  1.0
  Nb  Nb14  1  0.244  0.776  0.625  1.0
  Nb  Nb15  1  0.244  0.724  0.375  1.0
  O  O16  1  0.045  0.047  0.393  1.0
  O  O17  1  0.045  0.453  0.607  1.0
  O  O18  1  0.955  0.547  0.107  1.0
  O  O19  1  0.955  0.953  0.893  1.0
  O  O20  1  0.955  0.953  0.607  1.0
  O  O21  1  0.955  0.547  0.393  1.0
  O  O22  1  0.045  0.453  0.893  1.0
  O  O23  1  0.045  0.047  0.107  1.0
  O  O24  1  0.455  0.462  0.356  1.0
  O  O25  1  0.455  0.038  0.644  1.0
  O  O26  1  0.545  0.962  0.144  1.0
  O  O27  1  0.545  0.538  0.856  1.0
  O  O28  1  0.545  0.538  0.644  1.0
  O  O29  1  0.545  0.962  0.356  1.0
  O  O30  1  0.455  0.038  0.856  1.0
  O  O31  1  0.455  0.462  0.144  1.0
  O  O32  1  0.677  0.250  0.000  1.0
  O  O33  1  0.323  0.750  0.500  1.0
  O  O34  1  0.323  0.750  0.000  1.0
  O  O35  1  0.677  0.250  0.500  1.0
  O  O36  1  0.175  0.778  0.250  1.0
  O  O37  1  0.175  0.722  0.750  1.0
  O  O38  1  0.825  0.278  0.250  1.0
  O  O39  1  0.825  0.222  0.750  1.0
[/CIF]
.