data_[Na4Tl4Ag8F16]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [7.5887]
_cell_length_b [9.7870]
_cell_length_c [7.1083]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [NaTlAg2F4]
_chemical_formula_sum '[Na4 Tl4 Ag8 F16]'
_cell_volume [527.9410]
_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  0.0000  0.5862  1.0
  Tl  Tl1  4  0.0000  0.0000  0.1033  1.0
  Ag  Ag2  8  0.2500  0.2500  0.2957  1.0
  F  F3  8  0.0000  0.2248  0.5349  1.0
  F  F4  8  0.2095  0.0000  0.8260  1.0
]