data_KNa2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.69
_cell_length_b   6.69
_cell_length_c   3.81
_cell_angle_alpha   103.26
_cell_angle_beta   103.26
_cell_angle_gamma   114.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNa2Pb
_chemical_formula_sum   'K1 Na2 Pb1'
_cell_volume   140.91
_cell_formula_units_Z   1
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  1  0.0  0.0  0.0  1.0
  Na  Na1  1  0.01  0.81  0.73  1.0
  Na  Na2  1  0.01  0.19  0.73  1.0
  Pb  Pb3  1  0.63  0.0  0.0  1.0

data_KNa2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.81
_cell_length_b   6.61
_cell_length_c   6.69
_cell_angle_alpha   117.52
_cell_angle_beta   103.26
_cell_angle_gamma   96.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNa2Pb
_chemical_formula_sum   'K1 Na2 Pb1'
_cell_volume   140.91
_cell_formula_units_Z   1
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  1  0.0  0.0  0.0  1.0
  Na  Na1  1  0.54  0.81  0.82  1.0
  Na  Na2  1  0.91  0.19  0.19  1.0
  Pb  Pb3  1  0.0  0.0  0.63  1.0

K Na Na Pb