data_CrOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.7
_cell_length_b   4.31
_cell_length_c   4.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrOs
_chemical_formula_sum   'Cr2 Os2'
_cell_volume   52.96
_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
  Cr  Cr0  1  0.0  0.0  0.63  1.0
  Cr  Cr1  1  0.35  0.16  0.92  1.0
  Os  Os2  1  0.0  0.16  0.14  1.0
  Os  Os3  1  0.35  0.0  0.41  1.0

data_CrOs
_symmetry_space_group_name_H-M   P-1
_cell_length_a   2.7
_cell_length_b   4.31
_cell_length_c   4.55
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   CrOs
_chemical_formula_sum   'Cr2 Os2'
_cell_volume   52.96
_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
  Cr  Cr0  2  0.18  0.08  0.65  1.0
  Os  Os1  2  0.18  0.92  0.14  1.0

Cr Cr Os Os
Cr Cr Os Os 0 3 o o o 1 2 o o + 
CrOs crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two CrOs clusters. Cr(1) is bonded in a 1-coordinate geometry to one Os(1) atom. The Cr(1)-Os(1) bond length is 1.36 Å. Os(1) is bonded in a 1-coordinate geometry to one Cr(1) atom.