data_[Pm2Pr6Y8]
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 [Pmn2_1]
_cell_length_a [11.6741]
_cell_length_b [7.3867]
_cell_length_c [6.3706]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [PmPr3Y4]
_chemical_formula_sum '[Pm2 Pr6 Y8]'
_cell_volume [549.3601]
_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  0.2495  0.6262  0.9804  1
  Pm  Pm1  2  0.0000  0.3721  0.1489  1
  Pr  Pr2  2  0.0000  0.6262  0.6481  1
  Y  Y3  4  0.2496  0.1219  0.9819  1
  Y  Y4  2  0.0000  0.1226  0.6474  1
  Y  Y5  2  0.0000  0.8781  0.1463  1
]