data_[Na4Ca6Ce2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  Ce  1.1200  1.8500  1.0800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.9544]
_cell_length_b [10.2807]
_cell_length_c [5.9296]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.4771]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ca3CeO6]
_chemical_formula_sum '[Na4 Ca6 Ce2 O12]'
_cell_volume [342.2111]
_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
[
  Na  Na0  4  0.0000  0.3339  0.0000  1.0
  Ca  Ca1  4  0.0000  0.1725  0.5000  1.0
  Ca  Ca2  2  0.0000  0.5000  0.5000  1.0
  Ce  Ce3  2  0.0000  0.0000  0.0000  1.0
  O  O4  8  0.2398  0.1539  0.2575  1.0
  O  O5  4  0.2193  0.0000  0.7517  1.0
]