data_[Pr6Nd4Er6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.0970]
_cell_length_b [5.1518]
_cell_length_c [20.7177]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Pr3Nd2Er3]
_chemical_formula_sum '[Pr6 Nd4 Er6]'
_cell_volume [544.0138]
_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  4  0.0000  0.0000  0.1231  1.0
  Pr  Pr1  2  0.0000  0.5000  0.0000  1.0
  Nd  Nd2  4  0.0000  0.5000  0.2491  1.0
  Er  Er3  4  0.0000  0.0000  0.3754  1.0
  Er  Er4  2  0.0000  0.5000  0.5000  1.0
]