data_[Na8Ag4H4F16]
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
  H  2.2000  0.2500  0.0000
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [6.7178]
_cell_length_b [9.9515]
_cell_length_c [6.7006]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [Na2AgHF4]
_chemical_formula_sum '[Na8 Ag4 H4 F16]'
_cell_volume [447.9484]
_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  8  0.2500  0.2500  0.1946  1.0
  Ag  Ag1  4  0.0000  0.0000  0.9106  1.0
  H  H2  4  0.0000  0.0000  0.2822  1.0
  F  F3  8  0.0000  0.2311  0.9440  1.0
  F  F4  8  0.1705  0.0000  0.2636  1.0
]