data_[Pr2Y2Se2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Y  1.2200  1.8000  1.0400
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.6674]
_cell_length_b [4.1191]
_cell_length_c [7.8044]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.2342]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [PrYSeO2]
_chemical_formula_sum '[Pr2 Y2 Se2 O4]'
_cell_volume [203.5772]
_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
[
  Pr  Pr0  2  0.3098  0.7500  0.0720  1.0
  Y  Y1  2  0.3281  0.7500  0.5801  1.0
  Se  Se2  2  0.0470  0.2500  0.7519  1.0
  O  O3  2  0.4841  0.2500  0.1288  1.0
  O  O4  2  0.4843  0.2500  0.6128  1.0
]