data_[Na4Sr6Ce2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  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 [6.2143]
_cell_length_b [10.7334]
_cell_length_c [6.1345]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.5408]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Sr3CeO6]
_chemical_formula_sum '[Na4 Sr6 Ce2 O12]'
_cell_volume [385.6066]
_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  0.3340  0.0000  1.0
  Sr  Sr1  4  0.0000  0.1732  0.5000  1.0
  Sr  Sr2  2  0.0000  0.5000  0.5000  1.0
  Ce  Ce3  2  0.0000  0.0000  0.0000  1.0
  O  O4  8  0.2312  0.1503  0.2421  1.0
  O  O5  4  0.2160  0.0000  0.7601  1.0
]