data_[Tb16Pm6Ho8]
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 [C2/m]
_cell_length_a [13.4335]
_cell_length_b [12.7590]
_cell_length_c [6.7616]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.1996]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb8Pm3Ho4]
_chemical_formula_sum '[Tb16 Pm6 Ho8]'
_cell_volume [1001.6260]
_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  0.2523  0.5000  1
  Tb  Tb1  4  0.0000  0.3566  0.0000  1
  Tb  Tb2  4  0.2285  0.5000  0.4470  1
  Tb  Tb3  4  0.2421  0.5000  0.9835  1
  Pm  Pm4  4  0.2500  0.2500  0.5000  1
  Pm  Pm5  2  0.0000  0.5000  0.5000  1
  Ho  Ho6  4  0.2500  0.2500  0.0000  1
  Ho  Ho7  2  0.0000  0.0000  0.0000  1
  Ho  Ho8  2  0.0000  0.0000  0.5000  1
]