data_[Tb4Pr4Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  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 [23.2160]
_cell_length_b [3.5989]
_cell_length_c [6.2136]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.0038]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbPrEr2]
_chemical_formula_sum '[Tb4 Pr4 Er8]'
_cell_volume [517.1804]
_cell_formula_units_Z [4]
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  0.0606  0.0000  0.1880  1
  Pr  Pr1  4  0.1857  0.0000  0.8934  1
  Er  Er2  4  0.0601  0.5000  0.6845  1
  Er  Er3  4  0.1873  0.5000  0.3955  1
]