data_[Na2Ag2F4]
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 [5.4744]
_cell_length_b [3.1754]
_cell_length_c [6.6986]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.5818]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaAgF2]
_chemical_formula_sum '[Na2 Ag2 F4]'
_cell_volume [114.4634]
_cell_formula_units_Z [2]
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  2  0.0000  0.5000  0.5000  1
  Ag  Ag1  2  0.0000  0.0000  0.0000  1
  F  F2  4  0.1232  0.0000  0.3095  1
]