data_[Ag6Sn3Pb3Br18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.5155]
_cell_length_b [7.5155]
_cell_length_c [20.9013]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Ag2SnPbBr6]
_chemical_formula_sum '[Ag6 Sn3 Pb3 Br18]'
_cell_volume [1022.3840]
_cell_formula_units_Z [3]
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
[
  Ag  Ag0  3  0.0000  0.0000  0.2040  1.0
  Ag  Ag1  3  0.0000  0.0000  0.7781  1.0
  Sn  Sn2  3  0.0000  0.0000  0.0099  1.0
  Pb  Pb3  3  0.0000  0.0000  0.5255  1.0
  Br  Br4  9  0.0005  0.6710  0.2721  1.0
  Br  Br5  9  0.0069  0.3103  0.1095  1.0
]