data_IrPtRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.71
_cell_length_b   2.71
_cell_length_c   9.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   IrPtRh2
_chemical_formula_sum   'Ir1 Pt1 Rh2'
_cell_volume   59.95
_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
  Ir  Ir0  1  0.0  0.0  0.78  1.0
  Pt  Pt1  1  0.35  0.0  0.35  1.0
  Rh  Rh2  1  0.0  0.0  0.41  1.0
  Rh  Rh3  1  0.35  0.0  0.09  1.0

data_IrPtRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   2.71
_cell_length_b   4.68
_cell_length_c   9.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   IrPtRh2
_chemical_formula_sum   'Ir2 Pt2 Rh4'
_cell_volume   119.91
_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
  Ir  Ir0  2  0.0  0.0  0.22  1.0
  Rh  Rh1  2  0.0  0.0  0.59  1.0
  Pt  Pt2  2  0.15  0.5  0.65  1.0
  Rh  Rh3  2  0.15  0.5  0.91  1.0

Ir Pt Rh Rh
Ir Pt Rh Rh 0 0 + + o 0 0 o + o 0 0 + o o 0 3 o o + 1 2 o o o 1 3 o o o 2 3 o o o 3 3 + + o 3 3 o + o 3 3 + o o 
IrRh2Pt crystallizes in the triclinic P1 space group. Ir(1) is bonded in a 9-coordinate geometry to six equivalent Ir(1), one Rh(1), and two equivalent Rh(2) atoms. There are two shorter (2.70 Å) and four longer (2.71 Å) Ir(1)-Ir(1) bond lengths. The Ir(1)-Rh(1) bond length is 3.52 Å. There is one shorter (3.08 Å) and one longer (3.42 Å) Ir(1)-Rh(2) bond length. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 2-coordinate geometry to one Ir(1) and two equivalent Pt(1) atoms. There is one shorter (1.07 Å) and one longer (1.84 Å) Rh(1)-Pt(1) bond length. In the second Rh site, Rh(2) is bonded in a 8-coordinate geometry to two equivalent Ir(1), six equivalent Rh(2), and one Pt(1) atom. There are two shorter (2.70 Å) and four longer (2.71 Å) Rh(2)-Rh(2) bond lengths. The Rh(2)-Pt(1) bond length is 2.49 Å. Pt(1) is bonded in a 1-coordinate geometry to one Rh(2) and two equivalent Rh(1) atoms.