data_[Tb4Pm10Nd8]
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 [Immm]
_cell_length_a [3.5842]
_cell_length_b [11.6359]
_cell_length_c [18.5858]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Tb2Pm5Nd4]
_chemical_formula_sum '[Tb4 Pm10 Nd8]'
_cell_volume [775.1165]
_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  0.5000  0.2970  1
  Pm  Pm1  8  0.0000  0.2086  0.3208  1
  Pm  Pm2  2  0.0000  0.0000  0.0000  1
  Nd  Nd3  4  0.0000  0.2396  0.5000  1
  Nd  Nd4  4  0.0000  0.5000  0.0894  1
]