data_Os2WSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.67
_cell_length_b   4.67
_cell_length_c   2.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   101.51
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Os2WSe
_chemical_formula_sum   'Os2 W1 Se1'
_cell_volume   62.21
_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  Os0  1  0.48  0.19  0.45  1.0
  Os  Os1  1  0.48  0.81  0.45  1.0
  W  W3  1  0.96  0.0  0.0  1.0
  Se  Se2  1  0.0  0.0  0.0  1.0

data_Os2WSe
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.91
_cell_length_b   4.67
_cell_length_c   4.67
_cell_angle_alpha   101.51
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Os2WSe
_chemical_formula_sum   'Os2 W1 Se1'
_cell_volume   62.21
_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  Os0  1  0.45  0.48  0.19  1.0
  Os  Os1  1  0.45  0.48  0.81  1.0
  W  W2  1  -0.0  0.96  0.0  1.0
  Se  Se3  1  0.0  0.0  0.0  1.0

Os Os W Se
Os Os W Se 0 1 o - o 2 3 + o o 
WOs2Se crystallizes in the triclinic P1 space group. W(1) is bonded in a single-bond geometry to two equivalent Os(1), two equivalent Os(2), and one Se(1) atom. There is one shorter (2.88 Å) and one longer (3.02 Å) W(1)-Os(1) bond length. There is one shorter (2.59 Å) and one longer (2.74 Å) W(1)-Os(2) bond length. The W(1)-Se(1) bond length is 0.21 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a 8-coordinate geometry to two equivalent W(1), two equivalent Os(1), two equivalent Os(2), and two equivalent Se(1) atoms. Both Os(1)-Os(1) bond lengths are 2.91 Å. There is one shorter (1.78 Å) and one longer (2.89 Å) Os(1)-Os(2) bond length. There is one shorter (2.59 Å) and one longer (2.74 Å) Os(1)-Se(1) bond length. In the second Os site, Os(2) is bonded in a 8-coordinate geometry to two equivalent W(1), two equivalent Os(1), two equivalent Os(2), and two equivalent Se(1) atoms. Both Os(2)-Os(2) bond lengths are 2.91 Å. There is one shorter (2.88 Å) and one longer (3.02 Å) Os(2)-Se(1) bond length. Se(1) is bonded in a single-bond geometry to one W(1), two equivalent Os(1), and two equivalent Os(2) atoms.