data_[Na6Tl4Ag8]
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
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.0607]
_cell_length_b [4.9619]
_cell_length_c [8.1145]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.2479]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3(TlAg2)2]
_chemical_formula_sum '[Na6 Tl4 Ag8]'
_cell_volume [439.5482]
_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  4  0.0505  0.5000  0.3242  1
  Na  Na1  2  0.0000  0.0000  0.0000  1
  Tl  Tl2  4  0.2443  0.0000  0.2910  1
  Ag  Ag3  4  0.1163  0.0000  0.5949  1
  Ag  Ag4  4  0.2337  0.5000  0.0772  1
]