data_[K8Ba4Bi4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ba  0.8900  2.1500  1.4900
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.4011]
_cell_length_b [7.7403]
_cell_length_c [10.8412]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [K2BaBiO4]
_chemical_formula_sum '[K8 Ba4 Bi4 O16]'
_cell_volume [621.0565]
_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
[
  K  K0  4  0.0000  0.0000  0.5000  1.0
  K  K1  4  0.2500  0.2500  0.7500  1.0
  Ba  Ba2  4  0.0000  0.0000  0.0000  1.0
  Bi  Bi3  4  0.2500  0.2500  0.2500  1.0
  O  O4  8  0.0000  0.0504  0.2484  1.0
  O  O5  8  0.2418  0.2500  0.0415  1.0
]