data_[K2Pb4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Pb  2.3300  1.8000  1.1225
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.6922]
_cell_length_b [7.0665]
_cell_length_c [4.5441]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.4405]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KPb2F8]
_chemical_formula_sum '[K2 Pb4 F16]'
_cell_volume [343.0245]
_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  2  0.0000  0.0000  0.0000  1.0
  Pb  Pb1  4  0.1803  0.5000  0.4869  1.0
  F  F2  8  0.1402  0.1870  0.4579  1.0
  F  F3  4  0.0175  0.5000  0.7587  1.0
  F  F4  4  0.2406  0.5000  0.0229  1.0
]