data_[Na2Tl2Si2Bi2Te2Cl2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  Si  1.9000  1.1000  0.5400
  Bi  2.0200  1.6000  1.0350
  Te  2.1000  1.4000  1.2933
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.9382]
_cell_length_b [3.8634]
_cell_length_c [23.1849]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [NaTlSiBiTeCl]
_chemical_formula_sum '[Na2 Tl2 Si2 Bi2 Te2 Cl2]'
_cell_volume [352.7466]
_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
[
  Na  Na0  2  0.5000  0.0000  0.7203  1
  Tl  Tl1  2  0.0000  0.0000  0.8838  1
  Si  Si2  2  0.0000  0.0000  0.0402  1
  Bi  Bi3  2  0.5000  0.0000  0.4975  1
  Te  Te4  2  0.0000  0.0000  0.1476  1
  Cl  Cl5  2  0.5000  0.0000  0.3043  1
]