data_[Ba8Na4W4O22]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Na  0.9300  1.8000  1.1600
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [8.6930]
_cell_length_b [8.4474]
_cell_length_c [8.5623]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Ba4Na2W2O11]
_chemical_formula_sum '[Ba8 Na4 W4 O22]'
_cell_volume [628.7599]
_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  8  0.2791  0.2481  0.2276  1.0
  Na  Na1  2  0.0000  0.0000  0.0215  1.0
  Na  Na2  2  0.5000  0.0000  0.4835  1.0
  W  W3  2  0.0000  0.0000  0.4989  1.0
  W  W4  2  0.5000  0.0000  0.9793  1.0
  O  O5  4  0.0000  0.1994  0.5999  1.0
  O  O6  4  0.2229  0.0000  0.5101  1.0
  O  O7  4  0.2709  0.0000  0.9779  1.0
  O  O8  4  0.5000  0.2306  0.9848  1.0
  O  O9  2  0.0000  0.0000  0.2834  1.0
  O  O10  2  0.5000  0.0000  0.2105  1.0
  O  O11  2  0.5000  0.0000  0.7532  1.0
]