data_[Tb20Nd8Er12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.6630]
_cell_length_b [15.9484]
_cell_length_c [9.4030]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.1737]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb5Nd2Er3]
_chemical_formula_sum '[Tb20 Nd8 Er12]'
_cell_volume [1322.9668]
_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  8  0.2289  0.6167  0.2140  1
  Tb  Tb1  4  0.0000  0.2319  0.7500  1
  Tb  Tb2  4  0.0000  0.2736  0.2500  1
  Tb  Tb3  4  0.0000  0.4703  0.2500  1
  Nd  Nd4  8  0.1402  0.1262  0.5468  1
  Er  Er5  8  0.1590  0.6198  0.5476  1
  Er  Er6  4  0.0000  0.0235  0.7500  1
]