data_[K2Ag2Pb2Br8]
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
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.4063]
_cell_length_b [7.8850]
_cell_length_c [8.9835]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0360]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KAgPbBr4]
_chemical_formula_sum '[K2 Ag2 Pb2 Br8]'
_cell_volume [501.5984]
_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
[
  K  K0  2  0.2208  0.2500  0.0514  1.0
  Ag  Ag1  2  0.2314  0.7500  0.3206  1.0
  Pb  Pb2  2  0.2132  0.2500  0.5551  1.0
  Br  Br3  4  0.0199  0.5110  0.7310  1.0
  Br  Br4  2  0.4743  0.7500  0.1480  1.0
  Br  Br5  2  0.4890  0.7500  0.6039  1.0
]