data_SiBPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.54
_cell_length_b   6.13
_cell_length_c   3.35
_cell_angle_alpha   81.52
_cell_angle_beta   68.0
_cell_angle_gamma   30.48
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiBPb
_chemical_formula_sum   'Si1 B1 Pb1'
_cell_volume   58.57
_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
  Si  Si2  1  0.74  0.86  0.55  1.0
  B  B0  1  0.74  0.86  0.33  1.0
  Pb  Pb1  1  0.74  0.86  0.61  1.0

data_SiBPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.48
_cell_length_b   11.75
_cell_length_c   3.35
_cell_angle_alpha   90.0
_cell_angle_beta   121.28
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SiBPb
_chemical_formula_sum   'Si2 B2 Pb2'
_cell_volume   117.14
_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
  Si  Si0  2  0.34  0.5  0.71  1.0
  B  B1  2  0.06  0.0  0.93  1.0
  Pb  Pb2  2  0.29  0.5  0.65  1.0

Si B Pb