data_[Cu2Ag2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.3343]
_cell_length_b [8.2823]
_cell_length_c [10.6645]
_cell_angle_alpha [88.7846]
_cell_angle_beta [86.6083]
_cell_angle_gamma [75.8826]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [CuAgBr4]
_chemical_formula_sum '[Cu2 Ag2 Br8]'
_cell_volume [370.6136]
_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
[
  Cu  Cu0  1  0.0000  0.0000  0.0000  1.0
  Cu  Cu1  1  0.5000  0.5000  0.5000  1.0
  Ag  Ag2  2  0.3344  0.2485  0.2382  1.0
  Br  Br3  2  0.0850  0.7068  0.9378  1.0
  Br  Br4  2  0.1696  0.5610  0.3257  1.0
  Br  Br5  2  0.3251  0.7870  0.5540  1.0
  Br  Br6  2  0.3663  0.0578  0.8297  1.0
]