data_[Pm4Y2Ho2Er4]
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
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [7.0045]
_cell_length_b [5.6350]
_cell_length_c [9.7552]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [Pm2YHoEr2]
_chemical_formula_sum '[Pm4 Y2 Ho2 Er4]'
_cell_volume [385.0362]
_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  2  0.0000  0.5000  0.0000  1
  Pm  Pm1  2  0.2500  0.0000  0.8255  1
  Y  Y2  2  0.0000  0.0000  0.5000  1
  Ho  Ho3  2  0.2500  0.5000  0.3395  1
  Er  Er4  2  0.2500  0.0000  0.1634  1
  Er  Er5  2  0.2500  0.5000  0.6688  1
]