data_[Tb3Y6Cu27]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.1857]
_cell_length_b [5.1857]
_cell_length_c [25.0280]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [TbY2Cu9]
_chemical_formula_sum '[Tb3 Y6 Cu27]'
_cell_volume [582.8659]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1.0
  Y  Y1  6  0.0000  0.0000  0.1414  1.0
  Cu  Cu2  18  0.0007  0.5003  0.0818  1.0
  Cu  Cu3  6  0.0000  0.0000  0.3323  1.0
  Cu  Cu4  3  -0.0000  -0.0000  0.5000  1.0
]