data_[Pm6Nd12Y2Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.3138]
_cell_length_b [10.9376]
_cell_length_c [11.9857]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.0999]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3Nd6YEr2]
_chemical_formula_sum '[Pm6 Nd12 Y2 Er4]'
_cell_volume [814.8875]
_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  0.1668  0.5000  1
  Pm  Pm1  2  0.0000  0.5000  0.5000  1
  Nd  Nd2  8  0.2500  0.3328  0.7535  1
  Nd  Nd3  4  0.2484  0.5000  0.2465  1
  Y  Y4  2  0.0000  0.0000  0.0000  1
  Er  Er5  4  0.0000  0.3334  0.0000  1
]