data_[K4Ac4Bi2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ac  1.1000  1.9500  1.2600
  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 [6.5247]
_cell_length_b [11.2002]
_cell_length_c [6.7190]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.1724]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Ac2BiO6]
_chemical_formula_sum '[K4 Ac4 Bi2 O12]'
_cell_volume [473.8948]
_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
[
  K  K0  4  0.0000  0.1534  0.0000  1
  Ac  Ac1  4  0.0000  0.3359  0.5000  1
  Bi  Bi2  2  0.0000  0.0000  0.5000  1
  O  O3  8  0.2010  0.1612  0.6786  1
  O  O4  4  0.2426  0.0000  0.3103  1
]