data_[Ag4Pb4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I4_1md]
_cell_length_a [7.6399]
_cell_length_b [7.6399]
_cell_length_c [7.4481]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [109]
_chemical_formula_structural [AgPbF4]
_chemical_formula_sum '[Ag4 Pb4 F16]'
_cell_volume [434.7294]
_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
[
  Ag  Ag0  4  0.0000  0.0000  0.5003  1.0
  Pb  Pb1  4  0.0000  0.0000  0.9906  1.0
  F  F2  8  0.0000  0.1965  0.2337  1.0
  F  F3  8  0.0000  0.2065  0.7708  1.0
]