data_[Tb16Sm6Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [7.6953]
_cell_length_b [20.0383]
_cell_length_c [5.6582]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Tb8Sm3Er2]
_chemical_formula_sum '[Tb16 Sm6 Er4]'
_cell_volume [872.4932]
_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  8  0.2092  0.3913  0.5000  1
  Tb  Tb1  4  0.0000  0.1347  0.0000  1
  Tb  Tb2  4  0.0000  0.3285  0.0000  1
  Sm  Sm3  4  0.2102  0.5000  0.0000  1
  Sm  Sm4  2  0.0000  0.0000  0.5000  1
  Er  Er5  4  0.0000  0.2414  0.5000  1
]