data_[Tb20Y8Tm4]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.6399]
_cell_length_b [16.3332]
_cell_length_c [11.4078]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Tb5Y2Tm]
_chemical_formula_sum '[Tb20 Y8 Tm4]'
_cell_volume [1050.8495]
_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  0.0000  0.0453  0.1127  1
  Tb  Tb1  8  0.0000  0.4123  0.0799  1
  Tb  Tb2  4  0.0000  0.3939  0.7500  1
  Y  Y3  8  0.0000  0.2129  0.5811  1
  Tm  Tm4  4  0.0000  0.2275  0.2500  1
]