data_[K4Sr10Sb6O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.0463]
_cell_length_b [5.0463]
_cell_length_c [30.0962]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [K2Sr5Sb3O2]
_chemical_formula_sum '[K4 Sr10 Sb6 O4]'
_cell_volume [766.4057]
_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  0.0000  0.2914  1.0
  Sr  Sr1  8  0.0000  0.5000  0.0943  1.0
  Sr  Sr2  2  0.0000  0.0000  0.5000  1.0
  Sb  Sb3  4  0.0000  0.0000  0.1697  1.0
  Sb  Sb4  2  0.0000  0.0000  0.0000  1.0
  O  O5  4  0.0000  0.0000  0.4183  1.0
]