data_[K4Ag4Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [9.1530]
_cell_length_b [8.4699]
_cell_length_c [6.4483]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [KAgPb2]
_chemical_formula_sum '[K4 Ag4 Pb8]'
_cell_volume [499.8994]
_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
[
  K  K0  4  0.0349  0.2500  0.3843  1.0
  Ag  Ag1  4  0.0946  0.7500  0.1335  1.0
  Pb  Pb2  8  0.1821  0.0566  0.8984  1.0
]