data_[Pm6Sm14Er2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.7322]
_cell_length_b [10.1965]
_cell_length_c [6.4718]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.8326]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3Sm7Er]
_chemical_formula_sum '[Pm6 Sm14 Er2]'
_cell_volume [771.4576]
_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  0.1718  0.0000  1
  Pm  Pm1  2  0.0000  0.0000  0.5000  1
  Sm  Sm2  8  0.2432  0.3287  0.2613  1
  Sm  Sm3  4  0.2402  0.0000  0.2138  1
  Sm  Sm4  2  0.0000  0.5000  0.0000  1
  Er  Er5  2  0.0000  0.5000  0.5000  1
]