data_[Pm14Dy4Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [5.6386]
_cell_length_b [16.0597]
_cell_length_c [8.1739]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Pm7(DyEr)2]
_chemical_formula_sum '[Pm14 Dy4 Er4]'
_cell_volume [740.1795]
_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  0.0000  0.1331  0.3258  1
  Pm  Pm1  4  0.0000  0.1350  0.9176  1
  Pm  Pm2  4  0.0000  0.3368  0.1231  1
  Pm  Pm3  2  0.0000  0.5000  0.4199  1
  Dy  Dy4  4  0.0000  0.2991  0.6216  1
  Er  Er5  2  0.0000  0.0000  0.6217  1
  Er  Er6  2  0.0000  0.5000  0.8360  1
]