data_[Rb4Cu4Ag4Br12]
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
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [20.5295]
_cell_length_b [4.2986]
_cell_length_c [8.2629]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.8954]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbCuAgBr3]
_chemical_formula_sum '[Rb4 Cu4 Ag4 Br12]'
_cell_volume [716.0470]
_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  0.1370  0.5000  0.9458  1.0
  Cu  Cu1  4  0.0091  0.0000  0.3533  1.0
  Ag  Ag2  4  0.1739  0.5000  0.4467  1.0
  Br  Br3  4  0.0379  0.5000  0.2354  1.0
  Br  Br4  4  0.1075  0.0000  0.6157  1.0
  Br  Br5  4  0.2199  0.0000  0.2630  1.0
]