data_[La4Pm8Sm2Y4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.1161]
_cell_length_b [3.6882]
_cell_length_c [9.7812]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.7528]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [La2Pm4SmY2]
_chemical_formula_sum '[La4 Pm8 Sm2 Y4]'
_cell_volume [621.1142]
_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
[
  La  La0  4  0.1661  0.5000  1.0000  1
  Pm  Pm1  4  0.0187  0.5000  0.3356  1
  Pm  Pm2  4  0.1858  0.0000  0.3351  1
  Sm  Sm3  2  0.0000  0.0000  0.0000  1
  Y  Y4  4  0.1474  0.0000  0.6649  1
]