data_SbPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.36
_cell_length_b   3.36
_cell_length_c   10.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.65
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SbPb
_chemical_formula_sum   'Sb2 Pb2'
_cell_volume   116.81
_cell_formula_units_Z   2
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
  Sb  Sb2  1  0.94  0.37  0.8  1.0
  Sb  Sb3  1  0.94  0.63  0.17  1.0
  Pb  Pb0  1  0.94  0.37  0.46  1.0
  Pb  Pb1  1  0.94  0.63  0.51  1.0

data_SbPb
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.36
_cell_length_b   3.36
_cell_length_c   10.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.65
_symmetry_Int_Tables_number   2
_chemical_formula_structural   SbPb
_chemical_formula_sum   'Sb2 Pb2'
_cell_volume   116.81
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Sb  Sb0  2  0.5  0.37  0.32  1.0
  Pb  Pb1  2  0.5  0.37  0.97  1.0

Sb Sb Pb Pb