data_[La4Tb2Pm8Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.9892]
_cell_length_b [3.6692]
_cell_length_c [9.7208]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.7668]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [La2Tb(Pm2Er)2]
_chemical_formula_sum '[La4 Tb2 Pm8 Er4]'
_cell_volume [609.9674]
_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  0.1657  0.5000  0.9976  1
  Tb  Tb1  2  0.0000  0.0000  0.0000  1
  Pm  Pm2  4  0.0189  0.5000  0.3367  1
  Pm  Pm3  4  0.1862  0.0000  0.3348  1
  Er  Er4  4  0.1477  0.0000  0.6647  1
]