data_[Cs4Ce2Se2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Ce  1.1200  1.8500  1.0800
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [5.6654]
_cell_length_b [5.6654]
_cell_length_c [11.9777]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [Cs2CeSeO6]
_chemical_formula_sum '[Cs4 Ce2 Se2 O12]'
_cell_volume [384.4406]
_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  0.0000  0.5000  0.2858  1
  Ce  Ce1  2  0.0000  0.0000  0.0339  1
  Se  Se2  2  0.0000  0.0000  0.5344  1
  O  O3  8  0.2192  0.2192  0.4976  1
  O  O4  2  0.0000  0.0000  0.1944  1
  O  O5  2  0.0000  0.0000  0.6752  1
]