data_[Na4Tl8Ag4Cl20]
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
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2657]
_cell_length_b [17.0426]
_cell_length_c [14.0769]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [NaTl2AgCl5]
_chemical_formula_sum '[Na4 Tl8 Ag4 Cl20]'
_cell_volume [1023.3830]
_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
[
  Na  Na0  4  0.0000  0.2122  0.0231  1
  Tl  Tl1  4  0.0000  0.0964  0.6812  1
  Tl  Tl2  4  0.0000  0.1599  0.3006  1
  Ag  Ag3  4  0.0000  0.4744  0.4467  1
  Cl  Cl4  4  0.0000  0.0532  0.0491  1
  Cl  Cl5  4  0.0000  0.2763  0.6564  1
  Cl  Cl6  4  0.0000  0.3324  0.3909  1
  Cl  Cl7  4  0.0000  0.3822  1.0000  1
  Cl  Cl8  4  0.0000  0.4776  0.7760  1
]