data_[Tb1Nd2Er4]
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 [P-1]
_cell_length_a [3.5156]
_cell_length_b [8.5521]
_cell_length_c [8.6041]
_cell_angle_alpha [62.0746]
_cell_angle_beta [82.2362]
_cell_angle_gamma [88.0531]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Tb(NdEr2)2]
_chemical_formula_sum '[Tb1 Nd2 Er4]'
_cell_volume [226.3454]
_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
  Nd  Nd1  2  0.4268  0.8699  0.7227  1
  Er  Er2  2  0.0329  0.7156  0.4500  1
  Er  Er3  2  0.3833  0.4196  0.8416  1
]