data_KSnPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.55
_cell_length_b   7.53
_cell_length_c   3.85
_cell_angle_alpha   75.43
_cell_angle_beta   74.99
_cell_angle_gamma   29.58
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSnPb
_chemical_formula_sum   'K1 Sn1 Pb1'
_cell_volume   104.06
_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  0.7  0.74  0.06  1.0
  Sn  Sn2  1  0.7  0.74  0.67  1.0
  Pb  Pb1  1  0.7  0.74  0.34  1.0

data_KSnPb
_symmetry_space_group_name_H-M   Imm2
_cell_length_a   3.85
_cell_length_b   14.06
_cell_length_c   3.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   44
_chemical_formula_structural   KSnPb
_chemical_formula_sum   'K2 Sn2 Pb2'
_cell_volume   208.15
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-x, -y, z'
  3  '-x, y, z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z+1/2'
  6  '-x+1/2, -y+1/2, z+1/2'
  7  '-x+1/2, y+1/2, z+1/2'
  8  'x+1/2, -y+1/2, z+1/2'
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  2  0.0  0.5  0.2  1.0
  Sn  Sn1  2  0.0  0.5  0.59  1.0
  Pb  Pb2  2  0.0  0.5  0.92  1.0

K Sn Pb