The crystal structure described by Na2MnO2 crystallizes in the orthorhombic Ibam space group. Na(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. Mn(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. O(1) is bonded in a 5-coordinate geometry to three equivalent Na(1) and two equivalent Mn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2MnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.599
_cell_length_b   5.831
_cell_length_c   6.018
_cell_angle_alpha   118.960
_cell_angle_beta   117.720
_cell_angle_gamma   90.009
_symmetry_Int_Tables_number   1
_cell_volume   145.598
_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
  Mn  Mn0  1  0.750  0.000  0.000  1.0
  Mn  Mn1  1  0.250  0.000  1.000  1.0
  Na  Na2  1  0.347  0.451  0.694  1.0
  Na  Na3  1  0.847  0.242  0.694  1.0
  Na  Na4  1  0.153  0.758  0.306  1.0
  Na  Na5  1  0.653  0.549  0.306  1.0
  O  O6  1  0.900  0.682  0.799  1.0
  O  O7  1  0.600  0.883  0.201  1.0
  O  O8  1  0.400  0.117  0.799  1.0
  O  O9  1  0.100  0.318  0.201  1.0
[/CIF]
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The crystal structure described by Na2MnO2 crystallizes in the orthorhombic Ibam space group. Na(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. Mn(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. O(1) is bonded in a 5-coordinate geometry to three equivalent Na(1) and two equivalent Mn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2MnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.599
_cell_length_b   5.831
_cell_length_c   6.018
_cell_angle_alpha   118.960
_cell_angle_beta   117.720
_cell_angle_gamma   90.009
_symmetry_Int_Tables_number   1
_cell_volume   145.598
_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
  Mn  Mn0  1  0.750  0.000  0.000  1.0
  Mn  Mn1  1  0.250  0.000  1.000  1.0
  Na  Na2  1  0.347  0.451  0.694  1.0
  Na  Na3  1  0.847  0.242  0.694  1.0
  Na  Na4  1  0.153  0.758  0.306  1.0
  Na  Na5  1  0.653  0.549  0.306  1.0
  O  O6  1  0.900  0.682  0.799  1.0
  O  O7  1  0.600  0.883  0.201  1.0
  O  O8  1  0.400  0.117  0.799  1.0
  O  O9  1  0.100  0.318  0.201  1.0
[/CIF]
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