data_LiOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.65
_cell_length_b   4.65
_cell_length_c   4.65
_cell_angle_alpha   142.37
_cell_angle_beta   125.59
_cell_angle_gamma   68.04
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LiOs
_chemical_formula_sum   'Li2 Os2'
_cell_volume   49.03
_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
  Li  Li0  1  0.5  0.94  0.73  1.0
  Li  Li1  1  0.0  0.19  0.12  1.0
  Os  Os2  1  0.0  0.06  0.97  1.0
  Os  Os3  1  0.5  0.06  0.88  1.0

data_LiOs
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.0
_cell_length_b   4.25
_cell_length_c   4.65
_cell_angle_alpha   117.2
_cell_angle_beta   108.82
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   LiOs
_chemical_formula_sum   'Li2 Os2'
_cell_volume   49.03
_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
  Li  Li0  2  0.38  0.57  0.82  1.0
  Os  Os1  2  0.5  0.45  0.21  1.0

Li Li Os Os
Li Li Os Os 0 3 o + o 1 2 o o - 
LiOs is alpha carbon monoxide-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two LiOs clusters. Li(1) is bonded in a single-bond geometry to one Os(1) atom. The Li(1)-Os(1) bond length is 0.43 Å. Os(1) is bonded in a single-bond geometry to one Li(1) atom.