data_[Tb8Nd6Sm6]
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
  Sm  1.1700  1.8500  1.2290
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.7179]
_cell_length_b [13.5559]
_cell_length_c [13.5760]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb4(NdSm)3]
_chemical_formula_sum '[Tb8 Nd6 Sm6]'
_cell_volume [684.2287]
_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  0.1242  0.0009  1
  Tb  Tb1  2  0.0000  0.0000  0.3749  1
  Tb  Tb2  2  0.0000  0.0000  0.6244  1
  Nd  Nd3  4  0.5000  0.1743  0.4997  1
  Nd  Nd4  2  0.5000  0.0000  0.8261  1
  Sm  Sm5  4  0.0000  0.2488  0.2496  1
  Sm  Sm6  2  0.5000  0.0000  0.1742  1
]