data_SiBiCl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.81
_cell_length_b   7.57
_cell_length_c   3.27
_cell_angle_alpha   81.77
_cell_angle_beta   73.72
_cell_angle_gamma   24.51
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiBiCl
_chemical_formula_sum   'Si1 Bi1 Cl1'
_cell_volume   73.87
_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  0.88  0.68  0.69  1.0
  Bi  Bi0  1  0.88  0.68  0.41  1.0
  Cl  Cl1  1  0.88  0.68  0.23  1.0

data_SiBiCl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.77
_cell_length_b   14.66
_cell_length_c   3.27
_cell_angle_alpha   90.0
_cell_angle_beta   125.13
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SiBiCl
_chemical_formula_sum   'Si2 Bi2 Cl2'
_cell_volume   147.75
_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  0.19  0.5  0.57  1.0
  Bi  Bi1  2  0.41  0.0  0.29  1.0
  Cl  Cl2  2  0.23  0.0  0.12  1.0

Si Bi Cl
Si Bi Cl 0 1 o o o 1 2 o o o 