data_[Pm6Pr2Ho2Er2]
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
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.0686]
_cell_length_b [5.1294]
_cell_length_c [10.2333]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.5547]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Pm3PrHoEr]
_chemical_formula_sum '[Pm6 Pr2 Ho2 Er2]'
_cell_volume [401.5073]
_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  2  0.1693  0.2500  0.2919  1
  Pm  Pm1  2  0.1700  0.7500  0.5430  1
  Pm  Pm2  2  0.1706  0.7500  0.0419  1
  Pm  Pm3  2  0.1706  0.2500  0.7927  1
  Ho  Ho4  2  0.4995  0.2500  0.6256  1
  Er  Er5  2  0.4992  0.7500  0.8755  1
]