data_FeReOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.79
_cell_length_b   3.79
_cell_length_c   3.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeReOs2
_chemical_formula_sum   'Fe1 Re1 Os2'
_cell_volume   54.57
_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  Fe0  1  0.0  0.0  0.0  1.0
  Re  Re3  1  0.9  0.9  0.0  1.0
  Os  Os1  1  0.0  0.9  0.9  1.0
  Os  Os2  1  0.9  0.0  0.9  1.0

data_FeReOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.36
_cell_length_b   5.36
_cell_length_c   3.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   FeReOs2
_chemical_formula_sum   'Fe2 Re2 Os4'
_cell_volume   109.13
_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  0.0  0.0  0.0  1.0
  Re  Re1  2  0.4  0.5  -0.0  1.0
  Os  Os2  4  0.45  0.45  0.9  1.0

Fe Re Os Os
Fe Re Os Os 0 1 - - o 0 3 - o - 0 2 o - - 1 3 o + - 1 2 + o - 2 3 - + o 
ReOs2Fe is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two ReOs2Fe clusters. Re(1) is bonded in a 3-coordinate geometry to two equivalent Os(1) and one Fe(1) atom. Both Re(1)-Os(1) bond lengths are 0.56 Å. The Re(1)-Fe(1) bond length is 0.56 Å. Os(1) is bonded in a 3-coordinate geometry to one Re(1), one Os(1), and one Fe(1) atom. The Os(1)-Os(1) bond length is 0.56 Å. The Os(1)-Fe(1) bond length is 0.56 Å. Fe(1) is bonded in a 3-coordinate geometry to one Re(1) and two equivalent Os(1) atoms.