data_[K12Na4Pb4]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [10.8495]
_cell_length_b [7.4706]
_cell_length_c [12.3046]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.3275]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [K3NaPb]
_chemical_formula_sum '[K12 Na4 Pb4]'
_cell_volume [957.1006]
_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  0.1166  0.0072  0.4050  1.0
  K  K1  4  0.2905  0.2476  0.7000  1.0
  K  K2  4  0.4987  0.2639  0.4053  1.0
  Na  Na3  4  0.0973  0.4928  0.4038  1.0
  Pb  Pb4  4  0.1897  0.2797  0.1700  1.0
]