data_KNa2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.44
_cell_length_b   6.44
_cell_length_c   6.44
_cell_angle_alpha   133.25
_cell_angle_beta   133.25
_cell_angle_gamma   68.27
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNa2Pb
_chemical_formula_sum   'K1 Na2 Pb1'
_cell_volume   139.01
_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  0.33  1.0
  Na  Na1  1  0.0  0.55  0.66  1.0
  Na  Na2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.55  0.0  0.66  1.0

data_KNa2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   5.11
_cell_length_b   5.11
_cell_length_c   6.44
_cell_angle_alpha   113.38
_cell_angle_beta   113.38
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KNa2Pb
_chemical_formula_sum   'K1 Na2 Pb1'
_cell_volume   139.01
_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  0.67  0.0  0.67  1.0
  Na  Na1  1  0.0  0.0  0.0  1.0
  Na  Na2  1  0.89  0.55  0.89  1.0
  Pb  Pb3  1  0.34  0.0  0.89  1.0

K Na Na Pb