data_[K4Na12W4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [C2/m]
_cell_length_a [9.1750]
_cell_length_b [7.5628]
_cell_length_c [9.2126]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.2033]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KNa3WO5]
_chemical_formula_sum '[K4 Na12 W4 O20]'
_cell_volume [619.7119]
_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
[
  K  K0  4  0.0000  0.2518  0.5000  1.0
  Na  Na1  8  0.0969  0.2550  0.8866  1.0
  Na  Na2  4  0.1872  0.0000  0.2734  1.0
  W  W3  4  0.1917  0.5000  0.2587  1.0
  O  O4  8  0.1642  0.2809  0.1542  1.0
  O  O5  4  0.0199  0.5000  0.7407  1.0
  O  O6  4  0.0982  0.0000  0.7487  1.0
  O  O7  4  0.2465  0.5000  0.4670  1.0
]