data_[Cs4K4O2]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [7.9206]
_cell_length_b [16.3678]
_cell_length_c [4.3084]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [Cs2K2O]
_chemical_formula_sum '[Cs4 K4 O2]'
_cell_volume [558.5532]
_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  0.2360  0.8700  0.0000  1.0
  K  K1  4  0.1670  0.0701  0.5000  1.0
  O  O2  2  0.0000  0.0000  0.0000  1.0
]