data_[Tb8Pm8Y6]
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
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [10.6278]
_cell_length_b [5.7139]
_cell_length_c [12.1332]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb4Pm4Y3]
_chemical_formula_sum '[Tb8 Pm8 Y6]'
_cell_volume [736.8010]
_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  0.3007  0.0000  0.1032  1
  Tb  Tb1  2  0.0000  0.0000  0.5491  1
  Tb  Tb2  2  0.5000  0.0000  0.6171  1
  Pm  Pm3  4  0.2062  0.0000  0.7541  1
  Pm  Pm4  2  0.0000  0.0000  0.9593  1
  Pm  Pm5  2  0.5000  0.0000  0.8870  1
  Y  Y6  4  0.2928  0.0000  0.4090  1
  Y  Y7  2  0.0000  0.0000  0.2534  1
]