data_V2SiIr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.83
_cell_length_b   4.83
_cell_length_c   4.83
_cell_angle_alpha   136.43
_cell_angle_beta   136.43
_cell_angle_gamma   63.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   V2SiIr
_chemical_formula_sum   'V2 Si1 Ir1'
_cell_volume   52.8
_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
  V  V2  1  0.79  0.0  0.06  1.0
  V  V3  1  0.0  0.79  0.06  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Ir  Ir0  1  0.0  0.0  0.11  1.0

data_V2SiIr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.07
_cell_length_b   5.07
_cell_length_c   4.83
_cell_angle_alpha   90.0
_cell_angle_beta   121.66
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   V2SiIr
_chemical_formula_sum   'V4 Si2 Ir2'
_cell_volume   105.6
_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
  V  V0  4  0.34  0.4  0.74  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  Ir  Ir2  2  0.39  0.5  0.89  1.0

V V Si Ir
V2IrSi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two V2IrSi clusters. V(1) is bonded in a single-bond geometry to one Ir(1) atom. The V(1)-Ir(1) bond length is 0.83 Å. Ir(1) is bonded in a distorted trigonal planar geometry to two equivalent V(1) and one Si(1) atom. The Ir(1)-Si(1) bond length is 0.53 Å. Si(1) is bonded in a single-bond geometry to one Ir(1) atom.