data_BOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.81
_cell_length_b   4.26
_cell_length_c   3.57
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BOs
_chemical_formula_sum   'B2 Os2'
_cell_volume   42.68
_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
  B  B0  1  0.0  0.0  0.29  1.0
  B  B1  1  0.41  0.13  0.28  1.0
  Os  Os2  1  0.41  0.0  0.51  1.0
  Os  Os3  1  0.0  0.13  0.06  1.0

data_BOs
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.81
_cell_length_b   3.57
_cell_length_c   4.26
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   BOs
_chemical_formula_sum   'B2 Os2'
_cell_volume   42.68
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  B  B0  2  0.3  0.5  0.44  1.0
  Os  Os1  2  0.3  0.27  0.56  1.0

B B Os Os