data_[K4Te2Pb4Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Te  2.1000  1.4000  1.2933
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.2466]
_cell_length_b [4.6448]
_cell_length_c [8.7453]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.8663]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Te(PbSe)2]
_chemical_formula_sum '[K4 Te2 Pb4 Se4]'
_cell_volume [561.9061]
_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  0.0302  0.5000  0.7319  1
  Te  Te1  2  0.0000  0.0000  0.0000  1
  Pb  Pb2  4  0.2100  0.0000  0.2957  1
  Se  Se3  4  0.1464  0.0000  0.5570  1
]