data_[K8Tl8Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [8.5659]
_cell_length_b [12.1055]
_cell_length_c [7.7596]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.4958]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Tl2Ag]
_chemical_formula_sum '[K8 Tl8 Ag4]'
_cell_volume [767.4045]
_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
[
  K  K0  8  0.0701  0.3237  0.7551  1.0
  Tl  Tl1  4  0.1461  0.0000  0.4107  1.0
  Tl  Tl2  4  0.2411  0.0000  0.8453  1.0
  Ag  Ag3  4  0.0000  0.1140  0.0000  1.0
]