data_[Tb16Nd8Er4]
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/m]
_cell_length_a [13.9681]
_cell_length_b [3.7209]
_cell_length_c [18.2544]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.8596]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb4Nd2Er]
_chemical_formula_sum '[Tb16 Nd8 Er4]'
_cell_volume [928.4987]
_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  0.0448  0.5000  0.8217  1
  Tb  Tb1  4  0.1416  0.0000  0.7010  1
  Tb  Tb2  4  0.1989  0.5000  0.5561  1
  Tb  Tb3  4  0.2114  0.0000  0.9266  1
  Nd  Nd4  4  0.0939  0.5000  0.3561  1
  Nd  Nd5  4  0.1576  0.0000  0.1809  1
  Er  Er6  2  0.0000  0.0000  0.5000  1
  Er  Er7  2  0.0000  0.5000  0.0000  1
]