data_[Pm2Sm8Y4Er4]
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
  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 [15.2462]
_cell_length_b [5.0672]
_cell_length_c [8.0317]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.3587]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmSm4(YEr)2]
_chemical_formula_sum '[Pm2 Sm8 Y4 Er4]'
_cell_volume [588.9146]
_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  2  0.0000  0.0000  0.0000  1
  Sm  Sm1  4  0.0550  0.5000  0.3310  1
  Sm  Sm2  4  0.2225  0.0000  0.3318  1
  Y  Y3  4  0.1116  0.0000  0.6677  1
  Er  Er4  4  0.1679  0.5000  0.0002  1
]