data_[Tb16Al4Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Al  1.6100  1.2500  0.6750
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.7058]
_cell_length_b [13.6826]
_cell_length_c [5.6228]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.8939]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb4AlCu]
_chemical_formula_sum '[Tb16 Al4 Cu4]'
_cell_volume [625.7283]
_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  0.1165  0.1845  0.0703  1.0
  Tb  Tb1  8  0.2054  0.4241  0.3429  1.0
  Al  Al2  4  0.0000  0.3788  0.7500  1.0
  Cu  Cu3  4  0.0000  0.0004  0.7500  1.0
]