data_[Tb6Pm2Er4Tm12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  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 [6.1028]
_cell_length_b [10.5603]
_cell_length_c [11.6470]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.0214]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb3Pm(ErTm3)2]
_chemical_formula_sum '[Tb6 Pm2 Er4 Tm12]'
_cell_volume [739.1714]
_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  4  0.0000  0.1669  0.5000  1
  Tb  Tb1  2  0.0000  0.5000  0.5000  1
  Pm  Pm2  2  0.0000  0.0000  0.0000  1
  Er  Er3  4  0.0000  0.3333  0.0000  1
  Tm  Tm4  8  0.2492  0.3331  0.7499  1
  Tm  Tm5  4  0.2499  0.5000  0.2500  1
]