data_[Cs2Tl2Bi2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Tl  1.6200  1.9000  1.3325
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.5547]
_cell_length_b [4.5175]
_cell_length_c [10.9829]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.2310]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [CsTlBiSe3]
_chemical_formula_sum '[Cs2 Tl2 Bi2 Se6]'
_cell_volume [452.7780]
_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
[
  Cs  Cs0  2  0.2202  0.2500  0.2475  1.0
  Tl  Tl1  2  0.0814  0.2500  0.6231  1.0
  Bi  Bi2  2  0.3330  0.7500  0.8818  1.0
  Se  Se3  2  0.1283  0.2500  0.8930  1.0
  Se  Se4  2  0.2318  0.7500  0.5603  1.0
  Se  Se5  2  0.4674  0.7500  0.1455  1.0
]