data_[Pm4Pr2Dy2Er2]
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
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [8.4052]
_cell_length_b [6.6059]
_cell_length_c [6.2390]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.7893]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [Pm2PrDyEr]
_chemical_formula_sum '[Pm4 Pr2 Dy2 Er2]'
_cell_volume [345.6616]
_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  0.3096  0.3095  0.7288  1
  Pr  Pr1  2  0.0000  0.0000  0.0000  1
  Dy  Dy2  2  0.0000  0.4321  0.2500  1
  Er  Er3  2  0.5000  0.1619  0.2500  1
]