data_[Tb8Tm20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [15.5068]
_cell_length_b [6.2045]
_cell_length_c [9.0816]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.2859]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb2Tm5]
_chemical_formula_sum '[Tb8 Tm20]'
_cell_volume [868.5051]
_cell_formula_units_Z [4]
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  0.0719  0.3322  0.1074  1.0
  Tm  Tm1  8  0.1439  0.1662  0.4645  1.0
  Tm  Tm2  8  0.2142  0.3331  0.8218  1.0
  Tm  Tm3  4  0.0000  0.1667  0.7500  1.0
]