data_[Sb4Pb2Br2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmm2]
_cell_length_a [3.9226]
_cell_length_b [5.9518]
_cell_length_c [10.3942]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [35]
_chemical_formula_structural [Sb2PbBr]
_chemical_formula_sum '[Sb4 Pb2 Br2]'
_cell_volume [242.6656]
_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
[
  Sb  Sb0  2  0.0000  0.0000  0.0247  1
  Sb  Sb1  2  0.0000  0.5000  0.2351  1
  Pb  Pb2  2  0.0000  0.5000  0.7292  1
  Br  Br3  2  0.0000  0.0000  0.5110  1
]