data_[Tb2Pm6Ho8]
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
  Ho  1.2300  1.7500  1.0410
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [11.4184]
_cell_length_b [7.2950]
_cell_length_c [6.2944]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [TbPm3Ho4]
_chemical_formula_sum '[Tb2 Pm6 Ho8]'
_cell_volume [524.3068]
_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  0.3714  0.1473  1
  Pm  Pm1  4  0.2498  0.6267  0.9816  1
  Pm  Pm2  2  0.0000  0.6271  0.6472  1
  Ho  Ho3  4  0.2490  0.1222  0.9808  1
  Ho  Ho4  2  0.0000  0.1221  0.6482  1
  Ho  Ho5  2  0.0000  0.8776  0.1478  1
]