data_[Rb4U4Al2S12]
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
  Al  1.6100  1.2500  0.6750
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.7892]
_cell_length_b [11.6238]
_cell_length_c [8.2114]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.2502]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2U2AlS6]
_chemical_formula_sum '[Rb4 U4 Al2 S12]'
_cell_volume [622.1280]
_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  0.1698  0.0000  1
  U  U1  4  0.0000  0.3335  0.5000  1
  Al  Al2  2  0.0000  0.0000  0.5000  1
  S  S3  8  0.2173  0.1550  0.6814  1
  S  S4  4  0.2399  0.0000  0.3225  1
]