data_[Pr1Eu3]
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
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.8462]
_cell_length_b [6.3321]
_cell_length_c [6.8811]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [PrEu3]
_chemical_formula_sum '[Pr1 Eu3]'
_cell_volume [167.5878]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.0086  1.0
  Eu  Eu1  1  0.0000  0.5000  0.3185  1.0
  Eu  Eu2  1  0.5000  0.0000  0.5101  1.0
  Eu  Eu3  1  0.5000  0.5000  0.8294  1.0
]