data_[Tb8Pm4Pr4Er2]
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
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.8946]
_cell_length_b [3.6409]
_cell_length_c [9.6840]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.6972]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb4Pm2Pr2Er]
_chemical_formula_sum '[Tb8 Pm4 Pr4 Er2]'
_cell_volume [600.3026]
_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  0.0190  0.5000  0.3313  1
  Tb  Tb1  4  0.1847  0.0000  0.3351  1
  Pm  Pm2  4  0.1470  0.0000  0.6628  1
  Pr  Pr3  4  0.1647  0.5000  0.0003  1
  Er  Er4  2  0.0000  0.0000  0.0000  1
]