data_SbIr2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.71
_cell_length_b   8.71
_cell_length_c   8.71
_cell_angle_alpha   19.92
_cell_angle_beta   19.92
_cell_angle_gamma   19.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SbIr2Pt
_chemical_formula_sum   'Sb1 Ir2 Pt1'
_cell_volume   67.05
_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
  Sb  Sb3  1  0.0  0.0  0.0  1.0
  Ir  Ir0  1  0.0  0.0  0.13  1.0
  Ir  Ir1  1  0.0  0.0  0.47  1.0
  Pt  Pt2  1  0.0  0.0  0.8  1.0

data_SbIr2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.22
_cell_length_b   3.01
_cell_length_c   8.71
_cell_angle_alpha   90.0
_cell_angle_beta   101.52
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SbIr2Pt
_chemical_formula_sum   'Sb2 Ir4 Pt2'
_cell_volume   134.1
_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
  Sb  Sb0  2  0.0  0.0  0.0  1.0
  Ir  Ir1  2  -0.0  0.0  0.87  1.0
  Ir  Ir2  2  0.0  0.0  0.53  1.0
  Pt  Pt3  2  -0.0  0.0  0.2  1.0

Sb Ir Ir Pt
Sb Ir Ir Pt 0 1 o o o 0 3 o o - 1 2 o o o 2 2 o + - 2 2 + - o 2 2 + o - 2 3 o o o 
Ir2PtSb crystallizes in the monoclinic Cm space group. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a single-bond geometry to one Ir(2) and one Sb(1) atom. The Ir(1)-Ir(2) bond length is 2.93 Å. The Ir(1)-Sb(1) bond length is 1.13 Å. In the second Ir site, Ir(2) is bonded to one Ir(1), six equivalent Ir(2), and one Pt(1) atom to form a mixture of distorted corner and edge-sharing IrIr7Pt hexagonal bipyramids. All Ir(2)-Ir(2) bond lengths are 3.01 Å. The Ir(2)-Pt(1) bond length is 2.89 Å. Pt(1) is bonded in a single-bond geometry to one Ir(2) and one Sb(1) atom. The Pt(1)-Sb(1) bond length is 1.76 Å. Sb(1) is bonded in a linear geometry to one Ir(1) and one Pt(1) atom.