data_[Tb8Nd8Sb20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [15.9144]
_cell_length_b [8.1522]
_cell_length_c [8.3478]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Tb2Nd2Sb5]
_chemical_formula_sum '[Tb8 Nd8 Sb20]'
_cell_volume [1083.0273]
_cell_formula_units_Z [4]
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  8  0.1897  0.0000  0.0000  1
  Nd  Nd1  8  0.0000  0.1584  0.6622  1
  Sb  Sb2  16  0.1439  0.1450  0.3553  1
  Sb  Sb3  4  0.0000  0.0000  0.0000  1
]