data_[Tb4Pm4Sm8Er2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  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 [18.8556]
_cell_length_b [3.6371]
_cell_length_c [9.6700]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.6493]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb2Pm2Sm4Er]
_chemical_formula_sum '[Tb4 Pm4 Sm8 Er2]'
_cell_volume [597.8154]
_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
[
  Tb  Tb0  4  0.1479  0.0000  0.6667  1
  Pm  Pm1  4  0.1656  0.5000  0.9985  1
  Sm  Sm2  4  0.0184  0.5000  0.3329  1
  Sm  Sm3  4  0.1854  0.0000  0.3330  1
  Er  Er4  2  0.0000  0.0000  0.0000  1
]