data_Os2WBr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   4.51
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Os2WBr
_chemical_formula_sum   'Os2 W1 Br1'
_cell_volume   64.82
_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
  Os  Os1  1  0.59  0.59  0.59  1.0
  Os  Os2  1  0.78  0.78  0.78  1.0
  W  W3  1  0.19  0.19  0.19  1.0
  Br  Br0  1  0.0  0.0  0.0  1.0

data_Os2WBr
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   11.04
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Os2WBr
_chemical_formula_sum   'Os6 W3 Br3'
_cell_volume   194.46
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Os  Os0  3  0.0  0.0  0.22  1.0
  Os  Os1  3  0.0  0.0  0.41  1.0
  W  W2  3  0.0  0.0  0.81  1.0
  Br  Br3  3  0.0  0.0  0.0  1.0

Os Os W Br
Os Os W Br 0 2 o o + 0 2 o + o 0 2 + o o 0 3 o + + 0 3 + o + 0 3 + + o 0 1 o o o 1 2 o + + 1 2 + o + 1 2 + + o 1 3 + + + 2 3 o o o 
WOs2Br crystallizes in the trigonal R3m space group. W(1) is bonded in a distorted single-bond geometry to three equivalent Os(1) and one Br(1) atom. All W(1)-Os(1) bond lengths are 2.72 Å. The W(1)-Br(1) bond length is 2.08 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a 7-coordinate geometry to three equivalent W(1), one Os(2), and three equivalent Br(1) atoms. The Os(1)-Os(2) bond length is 2.08 Å. All Os(1)-Br(1) bond lengths are 2.72 Å. In the second Os site, Os(2) is bonded in a 1-coordinate geometry to one Os(1) and one Br(1) atom. The Os(2)-Br(1) bond length is 2.40 Å. Br(1) is bonded in a 2-coordinate geometry to one W(1), one Os(2), and three equivalent Os(1) atoms.