data_FeMo2Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.05
_cell_length_b   9.05
_cell_length_c   9.05
_cell_angle_alpha   17.46
_cell_angle_beta   17.46
_cell_angle_gamma   17.46
_symmetry_Int_Tables_number   1
_chemical_formula_structural   FeMo2Os
_chemical_formula_sum   'Fe1 Mo2 Os1'
_cell_volume   58.22
_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
  Mo  Mo1  1  0.0  0.0  0.71  1.0
  Mo  Mo2  1  0.0  0.0  0.01  1.0
  Os  Os3  1  0.0  0.0  0.36  1.0

data_FeMo2Os
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.76
_cell_length_b   2.75
_cell_length_c   9.05
_cell_angle_alpha   90.0
_cell_angle_beta   100.1
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   FeMo2Os
_chemical_formula_sum   'Fe2 Mo4 Os2'
_cell_volume   116.44
_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
  Mo  Mo1  2  -0.0  0.0  0.29  1.0
  Mo  Mo2  2  0.0  0.0  0.99  1.0
  Os  Os3  2  0.0  0.0  0.64  1.0

Fe Mo Mo Os
Fe Mo Mo Os 0 2 o o o 0 1 o o - 0 3 o o o 1 1 o + - 1 1 + - o 1 1 + o - 1 3 o o o 1 2 o o + 2 3 o o o 3 3 o + - 3 3 + - o 3 3 + o - 
Mo2OsFe crystallizes in the monoclinic Cm space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a distorted single-bond geometry to one Os(1) and one Fe(1) atom. The Mo(1)-Os(1) bond length is 3.17 Å. The Mo(1)-Fe(1) bond length is 2.60 Å. In the second Mo site, Mo(2) is bonded in a single-bond geometry to one Os(1) and one Fe(1) atom. The Mo(2)-Os(1) bond length is 3.17 Å. The Mo(2)-Fe(1) bond length is 0.10 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded to one Mo(1); one Mo(2); and six Os(1,1) atoms to form a mixture of corner and edge-sharing OsMo2Os6 hexagonal bipyramids. All Os(1)-Os(1,1) bond lengths are 2.75 Å. In the second Os site, Os(1) is bonded to one Mo(1); one Mo(2); and six Os(1,1) atoms to form a mixture of corner and edge-sharing OsMo2Os6 hexagonal bipyramids. The Os(1)-Mo(1) bond length is 3.17 Å. The Os(1)-Mo(2) bond length is 3.17 Å. Both Os(1)-Os(1) bond lengths are 2.75 Å. Fe(1) is bonded in a single-bond geometry to one Mo(1) and one Mo(2) atom.