data_[Cs4K2Se4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  K  0.8200  2.2000  1.5200
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.5204]
_cell_length_b [6.6523]
_cell_length_c [8.6261]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.8904]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs2K(SeO3)2]
_chemical_formula_sum '[Cs4 K2 Se4 O12]'
_cell_volume [567.3067]
_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
[
  Cs  Cs0  4  0.2410  0.5000  0.2733  1.0
  K  K1  2  0.0000  0.5000  0.5000  1.0
  Se  Se2  4  0.0501  0.0000  0.2114  1.0
  O  O3  8  0.0050  0.2071  0.7290  1.0
  O  O4  4  0.2224  0.0000  0.3372  1.0
]