data_[Sr12Bi8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.9479]
_cell_length_b [25.9705]
_cell_length_c [7.4647]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sr3Bi2O]
_chemical_formula_sum '[Sr12 Bi8 O4]'
_cell_volume [765.3461]
_cell_formula_units_Z [4]
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
[
  Sr  Sr0  8  0.0000  0.4065  0.5026  1.0
  Sr  Sr1  4  0.0000  0.2032  0.2500  1.0
  Bi  Bi2  4  0.0000  0.0022  0.2500  1.0
  Bi  Bi3  4  0.0000  0.1808  0.7500  1.0
  O  O4  4  0.0000  0.3518  0.7500  1.0
]