data_CdSiIr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.19
_cell_length_b   4.19
_cell_length_c   3.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CdSiIr2
_chemical_formula_sum   'Cd1 Si1 Ir2'
_cell_volume   60.51
_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
  Cd  Cd0  1  0.1  0.1  0.0  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0
  Ir  Ir1  1  0.1  0.0  0.72  1.0
  Ir  Ir2  1  0.0  0.1  0.72  1.0

data_CdSiIr2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.93
_cell_length_b   5.93
_cell_length_c   3.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CdSiIr2
_chemical_formula_sum   'Cd2 Si2 Ir4'
_cell_volume   121.01
_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
  Cd  Cd0  2  0.1  0.0  0.0  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0
  Ir  Ir2  4  0.05  0.05  0.72  1.0

Cd Si Ir Ir
Cd Si Ir Ir 0 1 o o o 2 3 o o o 
Ir2CdSi is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ir2CdSi clusters. Ir(1) is bonded in a 3-coordinate geometry to one Ir(1), one Cd(1), and one Si(1) atom. The Ir(1)-Ir(1) bond length is 0.57 Å. The Ir(1)-Cd(1) bond length is 1.04 Å. The Ir(1)-Si(1) bond length is 1.04 Å. Cd(1) is bonded in a distorted single-bond geometry to two equivalent Ir(1) and one Si(1) atom. The Cd(1)-Si(1) bond length is 0.57 Å. Si(1) is bonded in a single-bond geometry to two equivalent Ir(1) and one Cd(1) atom.