data_[Rb4U2Hg2Br12]
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
  Hg  2.0000  1.5000  1.2450
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [7.8571]
_cell_length_b [12.0409]
_cell_length_c [10.9833]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Rb2UHgBr6]
_chemical_formula_sum '[Rb4 U2 Hg2 Br12]'
_cell_volume [1039.0954]
_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  0.0000  0.2945  0.8460  1
  U  U1  2  0.0000  0.0000  0.1588  1
  Hg  Hg2  2  0.0000  0.5000  0.3576  1
  Br  Br3  4  0.0000  0.2328  0.1574  1
  Br  Br4  4  0.2418  0.5000  0.6694  1
  Br  Br5  4  0.2447  0.0000  0.9744  1
]