The structure described by Na2CuO2 crystallizes in the orthorhombic Immm space group. Na(1) is bonded in a linear geometry to two equivalent O(1,2) atoms. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1,2) atoms. O(1,2) is bonded in a square co-planar geometry to two equivalent Na(1) and two equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Na2CuO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.059
_cell_length_b   4.076
_cell_length_c   5.205
_cell_angle_alpha   113.130
_cell_angle_beta   113.048
_cell_angle_gamma   89.842
_symmetry_Int_Tables_number   1
_cell_volume   71.695
_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  0.250  0.750  0.500  1.0
  Na  Na1  1  0.750  0.250  0.500  1.0
  Cu  Cu2  1  0.000  0.000  0.000  1.0
  O  O3  1  0.000  0.500  0.000  1.0
  O  O4  1  0.500  0.000  0.000  1.0
[/CIF]
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The structure described by Na2CuO2 crystallizes in the orthorhombic Immm space group. Na(1) is bonded in a linear geometry to two equivalent O(1,2) atoms. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1,2) atoms. O(1,2) is bonded in a square co-planar geometry to two equivalent Na(1) and two equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Na2CuO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.059
_cell_length_b   4.076
_cell_length_c   5.205
_cell_angle_alpha   113.130
_cell_angle_beta   113.048
_cell_angle_gamma   89.842
_symmetry_Int_Tables_number   1
_cell_volume   71.695
_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  0.250  0.750  0.500  1.0
  Na  Na1  1  0.750  0.250  0.500  1.0
  Cu  Cu2  1  0.000  0.000  0.000  1.0
  O  O3  1  0.000  0.500  0.000  1.0
  O  O4  1  0.500  0.000  0.000  1.0
[/CIF]
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