data_[Pm20Pr8Y2]
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
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [I4/m]
_cell_length_a [9.9832]
_cell_length_b [9.9832]
_cell_length_c [10.6614]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [87]
_chemical_formula_structural [Pm10Pr4Y]
_chemical_formula_sum '[Pm20 Pr8 Y2]'
_cell_volume [1062.5608]
_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
[
  Pm  Pm0  16  0.1153  0.7931  0.3388  1
  Pr  Pr1  8  0.0592  0.6709  0.0000  1
  Pm  Pm2  4  0.0000  0.5000  0.2500  1
  Y  Y3  2  0.0000  0.0000  0.0000  1
]