data_[Pm4Pr8Nd4Y20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Nd  1.1400  1.8500  1.2765
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.7584]
_cell_length_b [8.7584]
_cell_length_c [15.8099]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [PmPr2NdY5]
_chemical_formula_sum '[Pm4 Pr8 Nd4 Y20]'
_cell_volume [1212.7720]
_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  0.1181  0.3819  0.0000  1
  Pm  Pm1  4  0.0000  0.0000  0.2500  1
  Nd  Nd2  4  0.0000  0.5000  0.2500  1
  Y  Y3  16  0.2086  0.2914  0.6380  1
  Y  Y4  4  0.0000  0.0000  0.0000  1
]