data_SiSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.12
_cell_length_b   4.12
_cell_length_c   12.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiSb
_chemical_formula_sum   'Si4 Sb4'
_cell_volume   188.65
_cell_formula_units_Z   4
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  Si4  1  0.0  0.0  0.21  1.0
  Si  Si5  1  0.0  0.0  0.63  1.0
  Si  Si6  1  0.06  0.19  0.63  1.0
  Si  Si7  1  0.0  0.38  0.21  1.0
  Sb  Sb0  1  0.06  0.19  0.9  1.0
  Sb  Sb1  1  0.0  0.38  0.31  1.0
  Sb  Sb2  1  0.0  0.38  0.94  1.0
  Sb  Sb3  1  0.06  0.19  0.52  1.0

data_SiSb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.12
_cell_length_b   4.12
_cell_length_c   12.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiSb
_chemical_formula_sum   'Si4 Sb4'
_cell_volume   188.65
_cell_formula_units_Z   4
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  Si0  1  0.0  0.0  0.21  1.0
  Si  Si1  1  0.0  0.0  0.63  1.0
  Si  Si2  1  0.0  0.38  0.21  1.0
  Si  Si3  1  0.06  0.19  0.63  1.0
  Sb  Sb4  1  0.0  0.38  0.31  1.0
  Sb  Sb5  1  0.0  0.38  0.94  1.0
  Sb  Sb6  1  0.06  0.19  0.52  1.0
  Sb  Sb7  1  0.06  0.19  0.9  1.0

Si Si Si Si Sb Sb Sb Sb