data_[Tb21Ru3I36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ru  2.2000  1.3000  0.6610
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [15.7671]
_cell_length_b [15.7671]
_cell_length_c [10.9609]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Tb7RuI12]
_chemical_formula_sum '[Tb21 Ru3 I36]'
_cell_volume [2359.8166]
_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  18  0.0433  0.8846  0.8631  1
  Tb  Tb1  3  0.0000  0.0000  0.5000  1
  Ru  Ru2  3  0.0000  0.0000  0.0000  1
  I  I3  18  0.0188  0.4330  0.6589  1
  I  I4  18  0.0493  0.8735  0.3367  1
]