data_[Rb8Ge4Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ge  2.0100  1.2500  0.7700
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [9.5460]
_cell_length_b [7.4364]
_cell_length_c [15.4013]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Rb2GeBr4]
_chemical_formula_sum '[Rb8 Ge4 Br16]'
_cell_volume [1093.3038]
_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  0.0375  0.2500  0.2095  1
  Rb  Rb1  4  0.0916  0.2500  0.5792  1
  Ge  Ge2  4  0.1207  0.2500  0.9508  1
  Br  Br3  8  0.2413  0.0051  0.3880  1
  Br  Br4  4  0.0640  0.7500  0.1744  1
  Br  Br5  4  0.1493  0.7500  0.6027  1
]