data_[Ba8Tl4Sb4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Tl  1.6200  1.9000  1.3325
  Sb  2.0500  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.3864]
_cell_length_b [19.3998]
_cell_length_c [13.3189]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ba2TlSbSe5]
_chemical_formula_sum '[Ba8 Tl4 Sb4 Se20]'
_cell_volume [1133.3830]
_cell_formula_units_Z [4]
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
[
  Ba  Ba0  4  0.0000  0.1152  0.6865  1.0
  Ba  Ba1  4  0.0000  0.1308  0.3077  1.0
  Tl  Tl2  4  0.0000  0.4420  0.4485  1.0
  Sb  Sb3  4  0.0000  0.2168  0.0189  1.0
  Se  Se4  4  0.0000  0.0454  0.0672  1.0
  Se  Se5  4  0.0000  0.2835  0.6600  1.0
  Se  Se6  4  0.0000  0.3082  0.3655  1.0
  Se  Se7  4  0.0000  0.3527  0.9994  1.0
  Se  Se8  4  0.0000  0.4959  0.7704  1.0
]