data_FeCoOs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.6
_cell_length_b   5.6
_cell_length_c   5.6
_cell_angle_alpha   153.36
_cell_angle_beta   153.36
_cell_angle_gamma   38.04
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeCoOs
_chemical_formula_sum   'Fe1 Co1 Os1'
_cell_volume   35.35
_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
  Fe  Fe1  1  0.0  0.0  0.55  1.0
  Co  Co0  1  0.0  0.0  0.56  1.0
  Os  Os2  1  0.0  0.0  0.09  1.0

data_FeCoOs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.65
_cell_length_b   3.65
_cell_length_c   5.6
_cell_angle_alpha   90.0
_cell_angle_beta   109.02
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   FeCoOs
_chemical_formula_sum   'Fe2 Co2 Os2'
_cell_volume   70.69
_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
  Fe  Fe0  2  0.05  0.5  0.55  1.0
  Co  Co1  2  0.06  0.5  0.56  1.0
  Os  Os2  2  0.09  0.0  0.09  1.0

Fe Co Os
OsFeCo crystallizes in the monoclinic Cm space group. Os(1) is bonded in a 6-coordinate geometry to four equivalent Os(1), one Fe(1), and one Co(1) atom. All Os(1)-Os(1) bond lengths are 2.58 Å. The Os(1)-Fe(1) bond length is 2.61 Å. The Os(1)-Co(1) bond length is 2.96 Å. Fe(1) is bonded in a single-bond geometry to one Os(1) and one Co(1) atom. The Fe(1)-Co(1) bond length is 0.03 Å. Co(1) is bonded in a single-bond geometry to one Os(1) and one Fe(1) atom.