data_[K4Pb8F20]
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 [Cmcm]
_cell_length_a [4.7364]
_cell_length_b [12.6129]
_cell_length_c [12.9066]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [KPb2F5]
_chemical_formula_sum '[K4 Pb8 F20]'
_cell_volume [771.0351]
_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  4  0.0000  0.1869  0.2500  1.0
  Pb  Pb1  8  0.0000  0.1377  0.5671  1.0
  F  F2  8  0.0000  0.0487  0.1013  1.0
  F  F3  8  0.0000  0.3008  0.0608  1.0
  F  F4  4  0.0000  0.2073  0.7500  1.0
]