data_[Rb2Ag2Pb2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [7.3847]
_cell_length_b [7.8674]
_cell_length_c [9.3936]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.0443]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbAgPbBr4]
_chemical_formula_sum '[Rb2 Ag2 Pb2 Br8]'
_cell_volume [518.9160]
_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
[
  Rb  Rb0  2  0.2330  0.2500  0.0522  1.0
  Ag  Ag1  2  0.2238  0.7500  0.3230  1.0
  Pb  Pb2  2  0.2132  0.2500  0.5528  1.0
  Br  Br3  4  0.0257  0.5131  0.7208  1.0
  Br  Br4  2  0.4617  0.7500  0.1561  1.0
  Br  Br5  2  0.4870  0.7500  0.5953  1.0
]