data_SiOsRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.42
_cell_length_b   8.42
_cell_length_c   8.42
_cell_angle_alpha   19.01
_cell_angle_beta   19.01
_cell_angle_gamma   19.01
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiOsRh2
_chemical_formula_sum   'Si1 Os1 Rh2'
_cell_volume   55.35
_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  Si3  1  0.0  0.0  0.38  1.0
  Os  Os0  1  0.0  0.0  0.05  1.0
  Rh  Rh1  1  0.0  0.0  0.76  1.0
  Rh  Rh2  1  0.0  0.0  0.81  1.0

data_SiOsRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.82
_cell_length_b   2.78
_cell_length_c   8.42
_cell_angle_alpha   90.0
_cell_angle_beta   100.99
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SiOsRh2
_chemical_formula_sum   'Si2 Os2 Rh4'
_cell_volume   110.71
_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
  Si  Si0  2  0.0  0.0  0.62  1.0
  Os  Os1  2  0.0  0.0  0.95  1.0
  Rh  Rh2  2  0.0  0.0  0.19  1.0
  Rh  Rh3  2  0.0  0.0  0.24  1.0

Si Os Rh Rh
OsRh2Si crystallizes in the monoclinic Cm space group. Os(1) is bonded in a 2-coordinate geometry to one Rh(2) and one Si(1) atom. The Os(1)-Rh(2) bond length is 2.03 Å. The Os(1)-Si(1) bond length is 2.81 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a single-bond geometry to one Rh(2) and one Si(1) atom. The Rh(1)-Rh(2) bond length is 0.41 Å. The Rh(1)-Si(1) bond length is 3.17 Å. In the second Rh site, Rh(2) is bonded in a distorted single-bond geometry to one Os(1) and one Rh(1) atom. Si(1) is bonded to one Os(1), one Rh(1), and six equivalent Si(1) atoms to form a mixture of distorted corner and edge-sharing SiSi6OsRh hexagonal bipyramids. All Si(1)-Si(1) bond lengths are 2.78 Å.