data_[Tb4Sm4Er8Tm20]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.5381]
_cell_length_b [19.5838]
_cell_length_c [10.4861]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [TbSmEr2Tm5]
_chemical_formula_sum '[Tb4 Sm4 Er8 Tm20]'
_cell_volume [1137.2981]
_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  4  0.0000  0.2005  0.0118  1
  Sm  Sm1  4  0.0000  0.4162  0.4526  1
  Er  Er2  4  0.0000  0.1099  0.7363  1
  Er  Er3  4  0.0000  0.1129  0.3190  1
  Tm  Tm4  4  0.0000  0.0181  0.0261  1
  Tm  Tm5  4  0.0000  0.2818  0.3097  1
  Tm  Tm6  4  0.0000  0.2993  0.7098  1
  Tm  Tm7  4  0.0000  0.3901  0.0226  1
  Tm  Tm8  4  0.0000  0.4784  0.7361  1
]