data_Si2BSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.48
_cell_length_b   4.48
_cell_length_c   4.48
_cell_angle_alpha   119.25
_cell_angle_beta   119.25
_cell_angle_gamma   91.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2BSb
_chemical_formula_sum   'Si2 B1 Sb1'
_cell_volume   64.22
_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  0.0  0.0  0.13  1.0
  Si  Si3  1  0.0  0.26  0.57  1.0
  B  B0  1  0.0  0.0  0.0  1.0
  Sb  Sb1  1  0.26  0.0  0.57  1.0

data_Si2BSb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.48
_cell_length_b   4.48
_cell_length_c   4.48
_cell_angle_alpha   91.31
_cell_angle_beta   119.25
_cell_angle_gamma   119.25
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2BSb
_chemical_formula_sum   'Si2 B1 Sb1'
_cell_volume   64.22
_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  Si0  1  0.13  0.0  0.0  1.0
  Si  Si1  1  0.57  -0.0  0.26  1.0
  B  B2  1  0.0  0.0  0.0  1.0
  Sb  Sb3  1  0.57  0.26  0.0  1.0

Si Si B Sb