data_[Rb4U2Br8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  U  1.3800  1.7500  0.9913
  Br  2.9600  1.1500  0.8825
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.1010]
_cell_length_b [8.0568]
_cell_length_c [5.9282]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.5642]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2U(Br2O)2]
_chemical_formula_sum '[Rb4 U2 Br8 O4]'
_cell_volume [568.1748]
_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
[
  Rb  Rb0  4  0.1695  0.5000  0.3204  1
  U  U1  2  0.0000  0.0000  0.0000  1
  Br  Br2  8  0.1065  0.2607  0.7888  1
  O  O3  4  0.1155  0.0000  0.2339  1
]