data_[Pr8Eu4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Eu  1.2000  1.8500  1.1985
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [9.0583]
_cell_length_b [9.0583]
_cell_length_c [9.0599]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [Pr2EuSe4]
_chemical_formula_sum '[Pr8 Eu4 Se16]'
_cell_volume [743.3875]
_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
[
  Pr  Pr0  8  0.1264  0.2500  0.6250  1.0
  Eu  Eu1  4  0.0000  0.0000  0.0000  1.0
  Se  Se2  16  0.0757  0.1741  0.3043  1.0
]