data_[Ba2Pb2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [10.3509]
_cell_length_b [10.4078]
_cell_length_c [4.8414]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [BaPbBr4]
_chemical_formula_sum '[Ba2 Pb2 Br8]'
_cell_volume [521.5622]
_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
[
  Ba  Ba0  2  0.0000  0.5000  0.0000  1
  Pb  Pb1  2  0.0000  0.0000  0.5000  1
  Br  Br2  4  0.0000  0.1863  0.0000  1
  Br  Br3  4  0.2056  0.5000  0.5000  1
]