data_[Na2Tl2Ag2Cl8]
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 [P2_1/m]
_cell_length_a [7.3396]
_cell_length_b [7.4483]
_cell_length_c [7.7966]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.6197]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaTlAgCl4]
_chemical_formula_sum '[Na2 Tl2 Ag2 Cl8]'
_cell_volume [412.4253]
_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  0.1703  0.2500  0.5385  1.0
  Tl  Tl1  2  0.2195  0.2500  0.0521  1.0
  Ag  Ag2  2  0.2801  0.7500  0.3297  1.0
  Cl  Cl3  4  0.0166  0.5056  0.2548  1.0
  Cl  Cl4  2  0.4721  0.2500  0.8386  1.0
  Cl  Cl5  2  0.4765  0.2500  0.3848  1.0
]