data_YCuIr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.29
_cell_length_b   3.29
_cell_length_c   6.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YCuIr2
_chemical_formula_sum   'Y1 Cu1 Ir2'
_cell_volume   67.21
_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
  Y  Y3  1  0.0  0.0  0.11  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Ir  Ir1  1  0.64  0.64  0.32  1.0
  Ir  Ir2  1  0.64  0.64  0.9  1.0

data_YCuIr2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.65
_cell_length_b   4.65
_cell_length_c   6.22
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YCuIr2
_chemical_formula_sum   'Y2 Cu2 Ir4'
_cell_volume   134.41
_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
  Y  Y0  2  0.0  0.0  0.11  1.0
  Cu  Cu1  2  0.0  0.0  0.0  1.0
  Ir  Ir2  2  0.14  0.5  0.32  1.0
  Ir  Ir3  2  0.14  0.5  0.9  1.0

Y Cu Ir Ir
YIr2Cu crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two YIr2Cu clusters. Y(1) is bonded in a single-bond geometry to one Ir(1) and one Cu(1) atom. The Y(1)-Ir(1) bond length is 2.10 Å. The Y(1)-Cu(1) bond length is 0.69 Å. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 1-coordinate geometry to one Y(1) atom. In the second Ir site, Ir(2) is bonded in a 1-coordinate geometry to one Cu(1) atom. The Ir(2)-Cu(1) bond length is 1.77 Å. Cu(1) is bonded in a single-bond geometry to one Y(1) and one Ir(2) atom.