data_[Pm4Nd8Sm2Er4]
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
  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 [15.4222]
_cell_length_b [5.1396]
_cell_length_c [8.0961]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.5469]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Nd4SmEr2]
_chemical_formula_sum '[Pm4 Nd8 Sm2 Er4]'
_cell_volume [608.4039]
_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  0.1116  0.0000  0.6689  1
  Nd  Nd1  4  0.0549  0.5000  0.3308  1
  Nd  Nd2  4  0.2221  0.0000  0.3300  1
  Sm  Sm3  2  0.0000  0.0000  0.0000  1
  Er  Er4  4  0.1676  0.5000  0.9996  1
]