data_[Tb3Y1Er7]
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 [P2/m]
_cell_length_a [6.9217]
_cell_length_b [5.4765]
_cell_length_c [9.8608]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.1269]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Tb3YEr7]
_chemical_formula_sum '[Tb3 Y1 Er7]'
_cell_volume [350.9666]
_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  2  0.2194  0.5000  0.0014  1
  Tb  Tb1  1  0.0000  0.0000  0.5000  1
  Y  Y2  1  0.5000  0.0000  0.5000  1
  Er  Er3  2  0.0815  0.0000  0.1695  1
  Er  Er4  2  0.1797  0.5000  0.3595  1
  Er  Er5  2  0.3533  0.5000  0.7099  1
  Er  Er6  1  0.5000  0.0000  0.0000  1
]