data_[Na9Ag9W6O18F18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  W  2.3600  1.3500  0.7667
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [5.8379]
_cell_length_b [5.8379]
_cell_length_c [29.2152]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Na3Ag3W2(OF)6]
_chemical_formula_sum '[Na9 Ag9 W6 O18 F18]'
_cell_volume [862.2817]
_cell_formula_units_Z [3]
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  6  0.0000  0.0000  0.1337  1.0
  Na  Na1  3  -0.0000  0.0000  0.5000  1.0
  Ag  Ag2  6  0.0000  0.0000  0.3702  1.0
  Ag  Ag3  3  0.0000  0.0000  0.0000  1.0
  W  W4  6  0.0000  0.0000  0.2542  1.0
  O  O5  18  0.0330  0.7385  0.7179  1.0
  F  F6  18  0.0340  0.7588  0.2044  1.0
]