data_[Tb4Ce2Nd6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Nd  1.1400  1.8500  1.2765
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.2060]
_cell_length_b [12.4877]
_cell_length_c [7.2248]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.7158]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb2Ce(NdSe2)3]
_chemical_formula_sum '[Tb4 Ce2 Nd6 Se12]'
_cell_volume [612.0180]
_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
[
  Tb  Tb0  4  0.0000  0.3325  0.0000  1.0
  Ce  Ce1  2  0.0000  0.0000  0.0000  1.0
  Nd  Nd2  4  0.0000  0.1660  0.5000  1.0
  Nd  Nd3  2  0.0000  0.5000  0.5000  1.0
  Se  Se4  8  0.2494  0.8312  0.2411  1.0
  Se  Se5  4  0.2417  0.5000  0.2397  1.0
]