data_K2AgPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.21
_cell_length_b   5.21
_cell_length_c   7.34
_cell_angle_alpha   110.0
_cell_angle_beta   110.0
_cell_angle_gamma   58.94
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2AgPb
_chemical_formula_sum   'K2 Ag1 Pb1'
_cell_volume   156.7
_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  K1  1  0.07  0.0  0.48  1.0
  K  K2  1  0.07  0.0  0.58  1.0
  Ag  Ag0  1  0.07  0.0  0.53  1.0
  Pb  Pb3  1  0.06  0.0  0.52  1.0

data_K2AgPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   9.07
_cell_length_b   5.12
_cell_length_c   7.34
_cell_angle_alpha   90.0
_cell_angle_beta   113.13
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K2AgPb
_chemical_formula_sum   'K4 Ag2 Pb2'
_cell_volume   313.4
_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+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.43  0.5  0.52  1.0
  K  K1  2  0.43  0.5  0.42  1.0
  Ag  Ag2  2  0.43  0.5  0.47  1.0
  Pb  Pb3  2  0.43  0.5  0.48  1.0

K K Ag Pb