data_[Pr10Er8Mg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [9.0942]
_cell_length_b [21.3449]
_cell_length_c [3.6463]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [Pr5(Er2Mg)2]
_chemical_formula_sum '[Pr10 Er8 Mg4]'
_cell_volume [707.7985]
_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  0.1286  0.9357  0.0000  1
  Pr  Pr1  4  0.2459  0.7174  0.0000  1
  Pr  Pr2  2  0.0000  0.5000  0.0000  1
  Er  Er3  4  0.0706  0.3511  0.5000  1
  Er  Er4  4  0.2175  0.0768  0.5000  1
  Mg  Mg5  4  0.0419  0.8101  0.5000  1
]