data_[Na4Tb2Ce6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.3128]
_cell_length_b [12.6444]
_cell_length_c [7.3244]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3826]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Tb(CeSe2)3]
_chemical_formula_sum '[Na4 Tb2 Ce6 Se12]'
_cell_volume [638.8789]
_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  0.3345  0.0000  1.0
  Tb  Tb1  2  0.0000  0.0000  0.0000  1.0
  Ce  Ce2  4  0.0000  0.1707  0.5000  1.0
  Ce  Ce3  2  0.0000  0.5000  0.5000  1.0
  Se  Se4  8  0.2444  0.1626  0.2445  1.0
  Se  Se5  4  0.2412  0.0000  0.7499  1.0
]