data_[Rb8Ce4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ce  1.1200  1.8500  1.0800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [11.2963]
_cell_length_b [7.3663]
_cell_length_c [6.4915]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Rb2CeO3]
_chemical_formula_sum '[Rb8 Ce4 O12]'
_cell_volume [540.1683]
_cell_formula_units_Z [4]
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
[
  Rb  Rb0  8  0.1641  0.3628  0.7765  1.0
  Ce  Ce1  4  0.0000  0.0966  0.2345  1.0
  O  O2  8  0.1242  0.0275  0.4991  1.0
  O  O3  4  0.0000  0.3636  0.1463  1.0
]