data_[Tb2Pm4Pr1Er1]
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 [P2/m]
_cell_length_a [6.2539]
_cell_length_b [3.6275]
_cell_length_c [11.9853]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.1871]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Tb2Pm4PrEr]
_chemical_formula_sum '[Tb2 Pm4 Pr1 Er1]'
_cell_volume [267.6086]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.0000  1
  Tb  Tb1  1  0.0000  0.5000  0.5000  1
  Pm  Pm2  2  0.2484  0.0000  0.7468  1
  Pm  Pm3  2  0.2506  0.5000  0.2525  1
  Pr  Pr4  1  0.5000  0.5000  0.0000  1
  Er  Er5  1  0.5000  0.0000  0.5000  1
]