data_[K4Ag2Sn4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.2155]
_cell_length_b [4.2603]
_cell_length_c [7.9220]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.9991]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Ag(SnTe2)2]
_chemical_formula_sum '[K4 Ag2 Sn4 Te8]'
_cell_volume [644.9719]
_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
[
  K  K0  4  0.1152  0.0000  0.5755  1.0
  Ag  Ag1  2  0.0000  0.0000  0.0000  1.0
  Sn  Sn2  4  0.1580  0.5000  0.0606  1.0
  Te  Te3  4  0.0167  0.5000  0.2445  1.0
  Te  Te4  4  0.2346  0.0000  0.2602  1.0
]