data_[Tb2Y4Er2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [12.9305]
_cell_length_b [3.6340]
_cell_length_c [6.2899]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.0717]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [TbY2Er]
_chemical_formula_sum '[Tb2 Y4 Er2]'
_cell_volume [258.3228]
_cell_formula_units_Z [2]
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  2  0.2422  0.5000  0.4088  1.0
  Y  Y1  2  0.2396  0.0000  0.9066  1.0
  Y  Y2  2  0.4915  0.5000  0.3239  1.0
  Er  Er3  2  0.4904  0.0000  0.8246  1.0
]