data_[Rb4Ag4Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [17.3941]
_cell_length_b [4.5391]
_cell_length_c [8.1797]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.5137]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbAgBr2]
_chemical_formula_sum '[Rb4 Ag4 Br8]'
_cell_volume [582.8313]
_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  0.1361  0.0000  0.0976  1.0
  Ag  Ag1  4  0.0972  0.5000  0.6015  1.0
  Br  Br2  4  0.0137  0.5000  0.2326  1.0
  Br  Br3  4  0.1953  0.0000  0.7264  1.0
]