data_[Pm16Y8Er6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.7207]
_cell_length_b [12.1419]
_cell_length_c [6.9095]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.1577]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm8Y4Er3]
_chemical_formula_sum '[Pm16 Y8 Er6]'
_cell_volume [1014.8632]
_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  4  0.0000  0.2483  0.5000  1
  Pm  Pm1  4  0.0000  0.2961  0.0000  1
  Pm  Pm2  4  0.2013  0.5000  0.1741  1
  Pm  Pm3  4  0.2456  0.0000  0.2913  1
  Y  Y4  4  0.2500  0.2500  0.0000  1
  Y  Y5  2  0.0000  0.0000  0.0000  1
  Y  Y6  2  0.0000  0.0000  0.5000  1
  Er  Er7  4  0.2500  0.2500  0.5000  1
  Er  Er8  2  0.0000  0.5000  0.5000  1
]