data_[Na4W4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [Imma]
_cell_length_a [5.6299]
_cell_length_b [7.7667]
_cell_length_c [5.5603]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaWO3]
_chemical_formula_sum '[Na4 W4 O12]'
_cell_volume [243.1304]
_cell_formula_units_Z [4]
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  4  0.0000  0.2500  0.9877  1.0
  W  W1  4  0.0000  0.0000  0.5000  1.0
  O  O2  8  0.2500  0.0422  0.7500  1.0
  O  O3  4  0.0000  0.2500  0.4217  1.0
]