data_[Tb2Dy8Er4Tm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.4385]
_cell_length_b [3.5495]
_cell_length_c [9.4216]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.7633]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbDy4(ErTm)2]
_chemical_formula_sum '[Tb2 Dy8 Er4 Tm4]'
_cell_volume [555.3217]
_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  0.0000  1
  Dy  Dy1  4  0.0185  0.5000  0.3345  1
  Dy  Dy2  4  0.1854  0.0000  0.3336  1
  Er  Er3  4  0.1483  0.0000  0.6676  1
  Tm  Tm4  4  0.1674  0.5000  0.9999  1
]