data_[Tb6Dy9Se18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [4.1222]
_cell_length_b [4.1222]
_cell_length_c [60.4949]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Tb2(DySe2)3]
_chemical_formula_sum '[Tb6 Dy9 Se18]'
_cell_volume [890.2215]
_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  6  0.0000  0.0000  0.4460  1.0
  Dy  Dy1  6  0.0000  0.0000  0.2800  1.0
  Dy  Dy2  3  0.0000  0.0000  0.0000  1.0
  Se  Se3  6  0.0000  0.0000  0.0816  1.0
  Se  Se4  6  0.0000  0.0000  0.1973  1.0
  Se  Se5  6  0.0000  0.0000  0.3603  1.0
]