data_[Pr2Y6Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [11.2815]
_cell_length_b [7.3020]
_cell_length_c [6.3121]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [PrY3Er4]
_chemical_formula_sum '[Pr2 Y6 Er8]'
_cell_volume [519.9733]
_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  2  0.0000  0.3719  0.1452  1.0
  Y  Y1  4  0.2498  0.6280  0.9823  1.0
  Y  Y2  2  0.0000  0.6281  0.6448  1.0
  Er  Er3  4  0.2484  0.8779  0.4810  1.0
  Er  Er4  2  0.0000  0.1217  0.6498  1.0
  Er  Er5  2  0.0000  0.8783  0.1490  1.0
]