data_[Rb4Ce4Cd2Se12]
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
  Cd  1.6900  1.5500  1.0900
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.2371]
_cell_length_b [12.7919]
_cell_length_c [8.5286]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.8362]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Ce2CdSe6]
_chemical_formula_sum '[Rb4 Ce4 Cd2 Se12]'
_cell_volume [759.5843]
_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
[
  Rb  Rb0  4  0.0000  0.1619  0.0000  1.0
  Ce  Ce1  4  0.0000  0.3341  0.5000  1.0
  Cd  Cd2  2  0.0000  0.0000  0.5000  1.0
  Se  Se3  8  0.2330  0.1732  0.6929  1.0
  Se  Se4  4  0.2304  0.5000  0.6881  1.0
]