data_[Pm4Dy8Er12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [17.3569]
_cell_length_b [7.0830]
_cell_length_c [6.1264]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.1340]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [PmDy2Er3]
_chemical_formula_sum '[Pm4 Dy8 Er12]'
_cell_volume [753.1747]
_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  4  0.0000  0.1253  0.2500  1
  Dy  Dy1  8  0.1672  0.3752  0.4175  1
  Er  Er2  8  0.1678  0.1253  0.9159  1
  Er  Er3  4  0.0000  0.3759  0.7500  1
]