data_[Ce2Pr4Nd6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Pr  1.1300  1.8500  1.0600
  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 [18.4563]
_cell_length_b [4.2239]
_cell_length_c [8.5194]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.2393]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CePr2(NdSe2)3]
_chemical_formula_sum '[Ce2 Pr4 Nd6 Se12]'
_cell_volume [646.5101]
_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
[
  Ce  Ce0  2  0.0000  0.5000  0.0000  1
  Pr  Pr1  4  0.1666  0.0000  0.3325  1
  Nd  Nd2  4  0.1684  0.0000  0.8344  1
  Nd  Nd3  2  0.0000  0.5000  0.5000  1
  Se  Se4  4  0.0013  0.0000  0.7519  1
  Se  Se5  4  0.1654  0.5000  0.0805  1
  Se  Se6  4  0.1661  0.5000  0.5848  1
]