data_BOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.99
_cell_length_b   4.99
_cell_length_c   4.99
_cell_angle_alpha   148.09
_cell_angle_beta   148.09
_cell_angle_gamma   45.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BOs2
_chemical_formula_sum   'B1 Os2'
_cell_volume   34.61
_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
  B  B0  1  0.0  0.0  0.0  1.0
  Os  Os1  1  0.0  0.0  0.92  1.0
  Os  Os2  1  0.0  0.0  0.28  1.0

data_BOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.88
_cell_length_b   3.88
_cell_length_c   4.99
_cell_angle_alpha   90.0
_cell_angle_beta   112.87
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BOs2
_chemical_formula_sum   'B2 Os4'
_cell_volume   69.22
_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
  B  B0  2  0.0  0.0  0.0  1.0
  Os  Os1  2  0.28  0.0  0.28  1.0
  Os  Os2  2  0.42  0.5  0.92  1.0

B Os Os
B Os Os 0 1 o o - 0 2 o o o 
Os2B is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Os2B clusters. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a single-bond geometry to one B(1) atom. The Os(1)-B(1) bond length is 0.41 Å. In the second Os site, Os(2) is bonded in a single-bond geometry to one B(1) atom. The Os(2)-B(1) bond length is 1.39 Å. B(1) is bonded in a distorted linear geometry to one Os(1) and one Os(2) atom.