data_[K16Sb2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.4673]
_cell_length_b [11.9449]
_cell_length_c [13.4848]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [K8SbO2]
_chemical_formula_sum '[K16 Sb2 O4]'
_cell_volume [880.6363]
_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  8  0.0000  0.1605  0.1226  1.0
  K  K1  4  0.0000  0.1947  0.5000  1.0
  K  K2  4  0.0000  0.5000  0.1255  1.0
  Sb  Sb3  2  0.0000  0.5000  0.5000  1.0
  O  O4  4  0.0000  0.3310  0.0000  1.0
]