data_[Rb4Li4Bi2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Li  0.9800  1.4500  0.9000
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6849]
_cell_length_b [3.5647]
_cell_length_c [6.6279]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3389]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Li2BiO4]
_chemical_formula_sum '[Rb4 Li4 Bi2 O8]'
_cell_volume [282.7921]
_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  0.1407  0.0000  0.5652  1.0
  Li  Li1  4  0.1823  0.5000  0.9927  1.0
  Bi  Bi2  2  0.0000  0.0000  0.0000  1.0
  O  O3  4  0.0206  0.5000  0.7919  1.0
  O  O4  4  0.1909  0.0000  0.1311  1.0
]