data_[Cs2Si2Bi2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Si  1.9000  1.1000  0.5400
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1310]
_cell_length_b [5.8734]
_cell_length_c [7.9917]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.2978]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [CsSiBiO4]
_chemical_formula_sum '[Cs2 Si2 Bi2 O8]'
_cell_volume [273.2288]
_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
[
  Cs  Cs0  2  0.2944  0.2500  0.0521  1
  Si  Si1  2  0.2586  0.7500  0.3466  1
  Bi  Bi2  2  0.2320  0.2500  0.5279  1
  O  O3  4  0.0878  0.5245  0.3273  1
  O  O4  2  0.4089  0.7500  0.2102  1
  O  O5  2  0.4494  0.7500  0.5491  1
]