data_[K4Na2Sn4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  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 [15.7955]
_cell_length_b [5.7506]
_cell_length_c [7.5658]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.7457]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Na(SnTe2)2]
_chemical_formula_sum '[K4 Na2 Sn4 Te8]'
_cell_volume [679.2418]
_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  0.1457  0.0000  0.6193  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Sn  Sn2  4  0.1421  0.5000  0.0835  1.0
  Te  Te3  4  0.0287  0.5000  0.7467  1.0
  Te  Te4  4  0.1932  0.0000  0.1699  1.0
]