data_[Pm8Nd20Sm4Y4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.8333]
_cell_length_b [8.8333]
_cell_length_c [16.1805]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Pm2Nd5SmY]
_chemical_formula_sum '[Pm8 Nd20 Sm4 Y4]'
_cell_volume [1262.5361]
_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
[
  Pm  Pm0  8  0.1180  0.6180  0.5000  1
  Nd  Nd1  16  0.2124  0.2876  0.3599  1
  Nd  Nd2  4  0.0000  0.0000  0.0000  1
  Sm  Sm3  4  0.0000  0.0000  0.2500  1
  Y  Y4  4  0.0000  0.5000  0.2500  1
]