data_[Na4Tl8Ag4F16]
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 [Imma]
_cell_length_a [7.2328]
_cell_length_b [7.6377]
_cell_length_c [10.5198]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaTl2AgF4]
_chemical_formula_sum '[Na4 Tl8 Ag4 F16]'
_cell_volume [581.1393]
_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  0.2500  0.2500  0.7500  1.0
  Tl  Tl1  4  0.0000  0.0000  0.0000  1.0
  Tl  Tl2  4  0.2500  0.2500  0.2500  1.0
  Ag  Ag3  4  0.0000  0.0000  0.5000  1.0
  F  F4  8  0.0000  0.0337  0.7410  1.0
  F  F5  8  0.2279  0.2500  0.5202  1.0
]