data_[K8Bi4O10F2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [7.3720]
_cell_length_b [11.2667]
_cell_length_c [6.1949]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [K4Bi2O5F]
_chemical_formula_sum '[K8 Bi4 O10 F2]'
_cell_volume [514.5325]
_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  0.1868  0.1897  1
  K  K1  4  0.2699  0.0000  0.6612  1
  Bi  Bi2  4  0.5000  0.1861  0.1799  1
  O  O3  8  0.2999  0.2091  0.9053  1
  O  O4  2  0.5000  0.0000  0.3000  1
  F  F5  2  0.0000  0.0000  0.4230  1
]