data_CoOs3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   2.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoOs3
_chemical_formula_sum   'Co1 Os3'
_cell_volume   54.23
_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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Os  Os1  1  0.33  0.11  0.34  1.0
  Os  Os2  1  0.33  0.89  0.34  1.0
  Os  Os3  1  0.67  0.0  0.0  1.0

data_CoOs3
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.68
_cell_length_b   4.63
_cell_length_c   4.63
_cell_angle_alpha   109.62
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoOs3
_chemical_formula_sum   'Co1 Os3'
_cell_volume   54.23
_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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Os  Os1  1  0.0  0.67  0.0  1.0
  Os  Os2  1  0.34  0.33  0.89  1.0
  Os  Os3  1  0.34  0.33  0.11  1.0

Co Os Os Os
Co Os Os Os 0 3 - o o 0 1 o o o 1 2 o - o 2 3 o + o 
Os3Co crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Os3Co cluster. There are three inequivalent Os sites. In the first Os site, Os(1) is bonded in a 2-coordinate geometry to one Os(2) and one Co(1) atom. The Os(1)-Os(2) bond length is 0.99 Å. The Os(1)-Co(1) bond length is 1.72 Å. In the second Os site, Os(2) is bonded in a distorted single-bond geometry to one Os(1) atom. In the third Os site, Os(3) is bonded in a distorted single-bond geometry to one Co(1) atom. The Os(3)-Co(1) bond length is 1.53 Å. Co(1) is bonded in a 2-coordinate geometry to one Os(1) and one Os(3) atom.