data_[Na8Ag8F20]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.6088]
_cell_length_b [5.9525]
_cell_length_c [5.7558]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0729]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ag2F5]
_chemical_formula_sum '[Na8 Ag8 F20]'
_cell_volume [534.4812]
_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  0.1361  0.0000  0.0929  1.0
  Na  Na1  4  0.1373  0.5000  0.6810  1.0
  Ag  Ag2  4  0.2312  0.0000  0.6872  1.0
  Ag  Ag3  2  0.0000  0.0000  0.5000  1.0
  Ag  Ag4  2  0.0000  0.5000  0.0000  1.0
  F  F5  8  0.0511  0.2500  0.7997  1.0
  F  F6  8  0.1544  0.2513  0.4030  1.0
  F  F7  4  0.2500  0.2500  0.0000  1.0
]