data_[As1Pb1Br2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  As  2.1800  1.1500  0.6600
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [4.2682]
_cell_length_b [4.2682]
_cell_length_c [8.1687]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [AsPbBr2]
_chemical_formula_sum '[As1 Pb1 Br2]'
_cell_volume [148.8094]
_cell_formula_units_Z [1]
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
[
  As  As0  1  0.5000  0.5000  0.5954  1
  Pb  Pb1  1  0.0000  0.0000  0.6369  1
  Br  Br2  1  0.0000  0.0000  0.9610  1
  Br  Br3  1  0.5000  0.5000  0.3067  1
]