data_[Tb8Cu2Sb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Cu  1.9000  1.3500  0.8200
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.4666]
_cell_length_b [4.2319]
_cell_length_c [7.3609]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.3084]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb4CuSb2]
_chemical_formula_sum '[Tb8 Cu2 Sb4]'
_cell_volume [424.1768]
_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  0.1140  0.5000  0.9482  1
  Tb  Tb1  4  0.1144  0.0000  0.4454  1
  Cu  Cu2  2  0.0000  0.0000  0.0000  1
  Sb  Sb3  4  0.2472  0.5000  0.7454  1
]