data_InPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.48
_cell_length_b   3.48
_cell_length_c   11.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   InPb
_chemical_formula_sum   'In2 Pb2'
_cell_volume   119.61
_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
  In  In0  1  0.74  0.0  0.02  1.0
  In  In1  1  0.0  0.01  0.39  1.0
  Pb  Pb2  1  0.74  0.0  0.25  1.0
  Pb  Pb3  1  0.0  0.01  0.16  1.0

data_InPb
_symmetry_space_group_name_H-M   C2/m
_cell_length_a   3.48
_cell_length_b   6.03
_cell_length_c   11.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   12
_chemical_formula_structural   InPb
_chemical_formula_sum   'In4 Pb4'
_cell_volume   239.21
_cell_formula_units_Z   4
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'
  6  '-x+1/2, -y+1/2, -z'
  7  '-x+1/2, y+1/2, -z'
  8  '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
  In  In0  4  0.13  0.5  0.19  1.0
  Pb  Pb1  4  0.13  0.5  0.95  1.0

In In Pb Pb
In In Pb Pb 0 3 + o o 1 2 - o o 2 3 + o o 