data_[Ag4Pb12F28]
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 [Cmcm]
_cell_length_a [8.3475]
_cell_length_b [11.8820]
_cell_length_c [8.3566]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [AgPb3F7]
_chemical_formula_sum '[Ag4 Pb12 F28]'
_cell_volume [828.8389]
_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  0.0000  1
  Pb  Pb1  8  0.2363  0.2389  0.7500  1
  Pb  Pb2  4  0.0000  0.5000  0.0000  1
  F  F3  16  0.2420  0.1249  0.0066  1
  F  F4  4  0.0000  0.1266  0.7500  1
  F  F5  4  0.0000  0.3710  0.7500  1
  F  F6  4  0.0000  0.3748  0.2500  1
]