The crystal structure described by Na2Ba2O3 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded in a distorted trigonal planar geometry to one O(2) and two equivalent O(1) atoms. Ba(1) is bonded in a 4-coordinate geometry to one O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Na(1) and two equivalent Ba(1) atoms to form corner-sharing OBa2Na4 octahedra. The corner-sharing octahedral tilt angles are 49°. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1) and three equivalent Ba(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2Na2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.039
_cell_length_b   5.921
_cell_length_c   8.134
_cell_angle_alpha   72.577
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   277.519
_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
  Ba  Ba0  1  0.446  0.694  0.668  1.0
  Ba  Ba1  1  0.946  0.806  0.332  1.0
  Ba  Ba2  1  0.054  0.194  0.668  1.0
  Ba  Ba3  1  0.554  0.306  0.332  1.0
  Na  Na4  1  0.651  0.180  0.938  1.0
  Na  Na5  1  0.849  0.680  0.938  1.0
  Na  Na6  1  0.151  0.320  0.062  1.0
  Na  Na7  1  0.349  0.820  0.062  1.0
  O  O8  1  0.500  0.500  0.000  1.0
  O  O9  1  0.000  0.000  0.000  1.0
  O  O10  1  0.015  0.637  0.684  1.0
  O  O11  1  0.485  0.137  0.684  1.0
  O  O12  1  0.515  0.863  0.316  1.0
  O  O13  1  0.985  0.363  0.316  1.0
[/CIF]
.
The crystal structure described by Na2Ba2O3 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded in a distorted trigonal planar geometry to one O(2) and two equivalent O(1) atoms. Ba(1) is bonded in a 4-coordinate geometry to one O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Na(1) and two equivalent Ba(1) atoms to form corner-sharing OBa2Na4 octahedra. The corner-sharing octahedral tilt angles are 49°. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Na(1) and three equivalent Ba(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2Na2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.039
_cell_length_b   5.921
_cell_length_c   8.134
_cell_angle_alpha   72.577
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   277.519
_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
  Ba  Ba0  1  0.446  0.694  0.668  1.0
  Ba  Ba1  1  0.946  0.806  0.332  1.0
  Ba  Ba2  1  0.054  0.194  0.668  1.0
  Ba  Ba3  1  0.554  0.306  0.332  1.0
  Na  Na4  1  0.651  0.180  0.938  1.0
  Na  Na5  1  0.849  0.680  0.938  1.0
  Na  Na6  1  0.151  0.320  0.062  1.0
  Na  Na7  1  0.349  0.820  0.062  1.0
  O  O8  1  0.500  0.500  0.000  1.0
  O  O9  1  0.000  0.000  0.000  1.0
  O  O10  1  0.015  0.637  0.684  1.0
  O  O11  1  0.485  0.137  0.684  1.0
  O  O12  1  0.515  0.863  0.316  1.0
  O  O13  1  0.985  0.363  0.316  1.0
[/CIF]
.