data_[Dy12Tl2Si4Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Tl  1.6200  1.9000  1.3325
  Si  1.9000  1.1000  0.5400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.2948]
_cell_length_b [4.1323]
_cell_length_c [8.3989]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.2740]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Dy6TlSi2Se3]
_chemical_formula_sum '[Dy12 Tl2 Si4 Se6]'
_cell_volume [609.5113]
_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
[
  Dy  Dy0  4  0.0009  0.0000  0.2658  1.0
  Dy  Dy1  4  0.1719  0.5000  0.5689  1.0
  Dy  Dy2  4  0.1722  0.5000  0.0927  1.0
  Tl  Tl3  2  0.0000  0.5000  0.0000  1.0
  Si  Si4  4  0.1641  0.0000  0.3256  1.0
  Se  Se5  4  0.1664  0.0000  0.8277  1.0
  Se  Se6  2  0.0000  0.5000  0.5000  1.0
]