data_[Eu4Y8Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Eu  1.2000  1.8500  1.1985
  Y  1.2200  1.8000  1.0400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [12.4201]
_cell_length_b [4.1170]
_cell_length_c [14.8845]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Eu(YSe2)2]
_chemical_formula_sum '[Eu4 Y8 Se16]'
_cell_volume [761.0985]
_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
[
  Eu  Eu0  4  0.2414  0.2500  0.3354  1
  Y  Y1  4  0.0674  0.2500  0.1099  1
  Y  Y2  4  0.0821  0.2500  0.5981  1
  Se  Se3  4  0.0234  0.7500  0.7156  1
  Se  Se4  4  0.0906  0.2500  0.9195  1
  Se  Se5  4  0.1349  0.7500  0.4690  1
  Se  Se6  4  0.2077  0.7500  0.1795  1
]