data_Ag2PPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.16
_cell_length_b   4.5
_cell_length_c   6.25
_cell_angle_alpha   90.0
_cell_angle_beta   101.01
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag2PPb
_chemical_formula_sum   'Ag2 P1 Pb1'
_cell_volume   87.32
_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
  Ag  Ag0  1  1.0  0.0  0.44  1.0
  Ag  Ag1  1  0.42  0.25  0.49  1.0
  P  P2  1  0.41  0.0  0.7  1.0
  Pb  Pb3  1  0.3  0.25  0.57  1.0

data_Ag2PPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.16
_cell_length_b   4.5
_cell_length_c   6.25
_cell_angle_alpha   90.0
_cell_angle_beta   101.01
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ag2PPb
_chemical_formula_sum   'Ag2 P1 Pb1'
_cell_volume   87.32
_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
  Ag  Ag0  1  0.42  0.25  0.49  1.0
  Ag  Ag1  1  1.0  0.0  0.44  1.0
  P  P2  1  0.41  0.0  0.7  1.0
  Pb  Pb3  1  0.3  0.25  0.57  1.0

Ag Ag P Pb