data_[Pm12Pr6Ho2Er4]
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 [C2/m]
_cell_length_a [6.2997]
_cell_length_b [10.9157]
_cell_length_c [12.0143]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.0838]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm6Pr3HoEr2]
_chemical_formula_sum '[Pm12 Pr6 Ho2 Er4]'
_cell_volume [813.4055]
_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  8  0.2488  0.1667  0.2442  1
  Pr  Pr1  4  0.0000  0.1667  0.5000  1
  Pm  Pm2  4  0.2485  0.5000  0.2442  1
  Pr  Pr3  2  0.0000  0.5000  0.5000  1
  Ho  Ho4  2  0.0000  0.0000  0.0000  1
  Er  Er5  4  0.0000  0.3333  0.0000  1
]