The crystal structure described by NaMnO2 is Caswellsilverite structured and crystallizes in the monoclinic C2/m space group. Na(1) is bonded to six equivalent O(1) atoms to form NaO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-13°. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Na(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-13°. O(1) is bonded to three equivalent Na(1) and three equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Mn3 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_NaMnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.865
_cell_length_b   3.175
_cell_length_c   5.507
_cell_angle_alpha   78.054
_cell_angle_beta   74.915
_cell_angle_gamma   63.185
_symmetry_Int_Tables_number   1
_cell_volume   42.934
_cell_formula_units_Z   1
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  0.500  0.500  0.500  1.0
  Mn  Mn1  1  0.000  1.000  0.000  1.0
  O  O2  1  0.295  0.204  0.207  1.0
  O  O3  1  0.705  0.796  0.793  1.0
[/CIF]
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The crystal structure described by NaMnO2 is Caswellsilverite structured and crystallizes in the monoclinic C2/m space group. Na(1) is bonded to six equivalent O(1) atoms to form NaO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-13°. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Na(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-13°. O(1) is bonded to three equivalent Na(1) and three equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing ONa3Mn3 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_NaMnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.865
_cell_length_b   3.175
_cell_length_c   5.507
_cell_angle_alpha   78.054
_cell_angle_beta   74.915
_cell_angle_gamma   63.185
_symmetry_Int_Tables_number   1
_cell_volume   42.934
_cell_formula_units_Z   1
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  0.500  0.500  0.500  1.0
  Mn  Mn1  1  0.000  1.000  0.000  1.0
  O  O2  1  0.295  0.204  0.207  1.0
  O  O3  1  0.705  0.796  0.793  1.0
[/CIF]
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