data_[Tb2Er4Sb6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.3734]
_cell_length_b [6.1794]
_cell_length_c [13.1169]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [TbEr2Sb3]
_chemical_formula_sum '[Tb2 Er4 Sb6]'
_cell_volume [354.4840]
_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  0.0000  0.0000  0.5000  1.0
  Er  Er1  4  0.0000  0.0000  0.1660  1.0
  Sb  Sb2  4  0.0000  0.5000  0.1686  1.0
  Sb  Sb3  2  0.0000  0.5000  0.5000  1.0
]