data_[Tb6Pm8Nd6]
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
  Nd  1.1400  1.8500  1.2765
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.8023]
_cell_length_b [13.4139]
_cell_length_c [13.4933]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb3Pm4Nd3]
_chemical_formula_sum '[Tb6 Pm8 Nd6]'
_cell_volume [688.2009]
_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  0.2473  0.2492  1
  Tb  Tb1  2  0.5000  0.0000  0.1709  1
  Pm  Pm2  4  0.0000  0.1287  0.0016  1
  Pm  Pm3  2  0.0000  0.0000  0.3693  1
  Pm  Pm4  2  0.0000  0.0000  0.6295  1
  Nd  Nd5  4  0.5000  0.1708  0.4996  1
  Nd  Nd6  2  0.5000  0.0000  0.8295  1
]