data_[Sr8Ga4Bi8O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ga  1.8100  1.3000  0.7600
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [21.8821]
_cell_length_b [6.2914]
_cell_length_c [6.0688]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Sr2GaBi2O7]
_chemical_formula_sum '[Sr8 Ga4 Bi8 O28]'
_cell_volume [835.4846]
_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  0.1539  0.0315  0.4992  1
  Ga  Ga1  4  0.2500  0.5949  0.4572  1
  Bi  Bi2  8  0.0783  0.5081  0.5013  1
  O  O3  8  0.0826  0.2448  0.7479  1
  O  O4  8  0.1034  0.7482  0.2541  1
  O  O5  8  0.1801  0.0649  0.0143  1
  O  O6  4  0.2500  0.6572  0.1408  1
]