The structure described by NaMnO2 is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. Na(1) is bonded to six equivalent O(1) atoms to form distorted NaO6 pentagonal pyramids that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Mn(1)O6 octahedra, and edges with six equivalent Na(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 12°. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Na(1)O6 pentagonal pyramids, edges with six equivalent Mn(1)O6 octahedra, and edges with six equivalent Na(1)O6 pentagonal pyramids. O(1) is bonded to three equivalent Na(1) and three equivalent Mn(1) atoms to form a mixture of corner, face, and edge-sharing ONa3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-43°. is represented by the CIF file [CIF]
data_NaMnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.099
_cell_length_b   3.099
_cell_length_c   10.898
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   90.618
_cell_formula_units_Z   2
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  0.667  0.333  0.250  1.0
  Na  Na1  1  0.333  0.667  0.750  1.0
  Mn  Mn2  1  0.000  0.000  0.500  1.0
  Mn  Mn3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.333  0.667  0.402  1.0
  O  O5  1  0.667  0.333  0.598  1.0
  O  O6  1  0.667  0.333  0.902  1.0
  O  O7  1  0.333  0.667  0.098  1.0
[/CIF]
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The structure described by NaMnO2 is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. Na(1) is bonded to six equivalent O(1) atoms to form distorted NaO6 pentagonal pyramids that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Mn(1)O6 octahedra, and edges with six equivalent Na(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 12°. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Na(1)O6 pentagonal pyramids, edges with six equivalent Mn(1)O6 octahedra, and edges with six equivalent Na(1)O6 pentagonal pyramids. O(1) is bonded to three equivalent Na(1) and three equivalent Mn(1) atoms to form a mixture of corner, face, and edge-sharing ONa3Mn3 octahedra. The corner-sharing octahedral tilt angles range from 0-43°. is represented by the CIF file [CIF]
data_NaMnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.099
_cell_length_b   3.099
_cell_length_c   10.898
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   90.618
_cell_formula_units_Z   2
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  0.667  0.333  0.250  1.0
  Na  Na1  1  0.333  0.667  0.750  1.0
  Mn  Mn2  1  0.000  0.000  0.500  1.0
  Mn  Mn3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.333  0.667  0.402  1.0
  O  O5  1  0.667  0.333  0.598  1.0
  O  O6  1  0.667  0.333  0.902  1.0
  O  O7  1  0.333  0.667  0.098  1.0
[/CIF]
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