data_[Tb4Nd2Cu4]
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
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.0022]
_cell_length_b [4.6840]
_cell_length_c [10.8407]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.8980]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Tb2NdCu2]
_chemical_formula_sum '[Tb4 Nd2 Cu4]'
_cell_volume [252.1643]
_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  2  0.1549  0.2500  0.1147  1
  Tb  Tb1  2  0.2511  0.7500  0.5059  1
  Nd  Nd2  2  0.3076  0.2500  0.7563  1
  Cu  Cu3  2  0.2155  0.2500  0.3664  1
  Cu  Cu4  2  0.3771  0.7500  0.9954  1
]