data_[Na8Tl4Ag4Cl16]
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 [Cmcm]
_cell_length_a [4.1581]
_cell_length_b [14.1030]
_cell_length_c [14.7479]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Na2TlAgCl4]
_chemical_formula_sum '[Na8 Tl4 Ag4 Cl16]'
_cell_volume [864.8443]
_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  8  0.0000  0.3762  0.5459  1.0
  Tl  Tl1  4  0.0000  0.1334  0.7500  1.0
  Ag  Ag2  4  0.0000  0.1493  0.2500  1.0
  Cl  Cl3  8  0.0000  0.2567  0.1090  1.0
  Cl  Cl4  4  0.0000  0.0000  0.0000  1.0
  Cl  Cl5  4  0.0000  0.4598  0.7500  1.0
]