data_[Tb16Co8Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Co  1.8800  1.3500  0.7683
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [8.5459]
_cell_length_b [8.5459]
_cell_length_c [8.3751]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [Tb4Co2Cu]
_chemical_formula_sum '[Tb16 Co8 Cu4]'
_cell_volume [611.6599]
_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  16  0.0625  0.1846  0.8216  1.0
  Co  Co1  8  0.1290  0.2500  0.1250  1.0
  Cu  Cu2  4  0.0000  0.0000  0.5000  1.0
]