data_[Tb4Y2Er2Mg2]
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
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1265]
_cell_length_b [5.5580]
_cell_length_c [9.3200]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.2627]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Tb2YErMg]
_chemical_formula_sum '[Tb4 Y2 Er2 Mg2]'
_cell_volume [301.3725]
_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  0.3771  0.7500  0.3970  1
  Tb  Tb1  2  0.4518  0.2500  0.1998  1
  Y  Y2  2  0.0368  0.2500  0.3909  1
  Er  Er3  2  0.1655  0.7500  0.9988  1
  Mg  Mg4  2  0.2233  0.2500  0.8011  1
]