data_[Tb8Pm2Nd8]
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 [C2/m]
_cell_length_a [11.4497]
_cell_length_b [5.1299]
_cell_length_c [10.8825]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.4311]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb4PmNd4]
_chemical_formula_sum '[Tb8 Pm2 Nd8]'
_cell_volume [606.4044]
_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  0.1665  0.5000  0.5543  1
  Tb  Tb1  4  0.1688  0.5000  0.2251  1
  Pm  Pm2  2  0.0000  0.0000  0.0000  1
  Nd  Nd3  4  0.0012  0.0000  0.3343  1
  Nd  Nd4  4  0.1663  0.5000  0.8879  1
]