data_[Pm4Pr20Nd4Y8]
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 [8.8343]
_cell_length_b [8.8343]
_cell_length_c [16.4173]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [PmPr5NdY2]
_chemical_formula_sum '[Pm4 Pr20 Nd4 Y8]'
_cell_volume [1281.2814]
_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  16  0.2013  0.2987  0.3601  1
  Pr  Pr1  4  0.0000  0.0000  0.0000  1
  Pm  Pm2  4  0.0000  0.0000  0.2500  1
  Nd  Nd3  4  0.0000  0.5000  0.2500  1
  Y  Y4  8  0.1210  0.6210  0.5000  1
]