data_SiOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.81
_cell_length_b   3.81
_cell_length_c   6.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiOs
_chemical_formula_sum   'Si2 Os2'
_cell_volume   78.36
_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
  Si  Si2  1  0.91  0.1  0.43  1.0
  Si  Si3  1  0.0  0.2  0.32  1.0
  Os  Os0  1  0.91  0.1  0.1  1.0
  Os  Os1  1  0.0  0.2  0.21  1.0

data_SiOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.81
_cell_length_b   6.6
_cell_length_c   6.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SiOs
_chemical_formula_sum   'Si4 Os4'
_cell_volume   156.72
_cell_formula_units_Z   4
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  0.1  0.0  0.43  1.0
  Si  Si1  2  0.2  0.0  0.32  1.0
  Os  Os2  2  0.1  0.0  0.1  1.0
  Os  Os3  2  0.2  0.0  0.21  1.0

Si Si Os Os
OsSi is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one OsSi cluster. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a single-bond geometry to one Os(2) atom. The Os(1)-Os(2) bond length is 0.79 Å. In the second Os site, Os(2) is bonded in a distorted bent 150 degrees geometry to one Os(1) and one Si(2) atom. The Os(2)-Si(2) bond length is 0.64 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a single-bond geometry to one Si(2) atom. The Si(1)-Si(2) bond length is 0.79 Å. In the second Si site, Si(2) is bonded in a distorted bent 150 degrees geometry to one Os(2) and one Si(1) atom.