data_[K4Pb2F12]
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 [P2_1/c]
_cell_length_a [6.3009]
_cell_length_b [7.9282]
_cell_length_c [7.7952]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.7013]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K2PbF6]
_chemical_formula_sum '[K4 Pb2 F12]'
_cell_volume [344.7777]
_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  0.1741  0.0470  0.8123  1.0
  Pb  Pb1  2  0.5000  0.0000  0.5000  1.0
  F  F2  4  0.1933  0.1395  0.4615  1.0
  F  F3  4  0.2760  0.7128  0.9242  1.0
  F  F4  4  0.4060  0.0327  0.2055  1.0
]