data_[Rb4Cu4Bi4Br20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cu  1.9000  1.3500  0.8200
  Bi  2.0200  1.6000  1.0350
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.4616]
_cell_length_b [12.7088]
_cell_length_c [10.6854]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.4397]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [RbCuBiBr5]
_chemical_formula_sum '[Rb4 Cu4 Bi4 Br20]'
_cell_volume [1178.8483]
_cell_formula_units_Z [4]
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
[
  Rb  Rb0  4  0.0000  0.3571  0.7500  1.0
  Cu  Cu1  4  0.0000  0.3046  0.2500  1.0
  Bi  Bi2  4  0.0000  0.0000  0.0000  1.0
  Br  Br3  8  0.1102  0.2077  0.1125  1.0
  Br  Br4  8  0.1862  0.4231  0.4257  1.0
  Br  Br5  4  0.0000  0.0862  0.7500  1.0
]