data_TaIrOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   2.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   108.83
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaIrOs2
_chemical_formula_sum   'Ta1 Ir1 Os2'
_cell_volume   60.83
_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
  Ta  Ta3  1  0.0  0.0  0.0  1.0
  Ir  Ir0  1  0.78  0.0  0.0  1.0
  Os  Os1  1  0.39  0.05  0.4  1.0
  Os  Os2  1  0.39  0.95  0.4  1.0

data_TaIrOs2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.81
_cell_length_b   4.79
_cell_length_c   4.79
_cell_angle_alpha   108.83
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaIrOs2
_chemical_formula_sum   'Ta1 Ir1 Os2'
_cell_volume   60.83
_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
  Ta  Ta0  1  0.0  0.0  0.0  1.0
  Ir  Ir1  1  0.0  0.78  0.0  1.0
  Os  Os2  1  0.4  0.39  0.05  1.0
  Os  Os3  1  0.4  0.39  0.95  1.0

Ta Ir Os Os
IrTa(Os)2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one IrTa cluster and one Os cluster. In the IrTa cluster, Ta(1) is bonded in a distorted single-bond geometry to one Ir(1) atom. The Ta(1)-Ir(1) bond length is 1.03 Å. Ir(1) is bonded in a single-bond geometry to one Ta(1) atom. In the Os cluster, there are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a distorted single-bond geometry to one Os(2) atom. The Os(1)-Os(2) bond length is 0.52 Å. In the second Os site, Os(2) is bonded in a single-bond geometry to one Os(1) atom.