The material structure described by PtIr crystallizes in the trigonal R-3m space group. Ir(1) is bonded to six equivalent Ir(1) and six equivalent Pt(1) atoms to form IrIr6Pt6 cuboctahedra that share corners with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra, faces with six equivalent Ir(1)Ir6Pt6 cuboctahedra, and faces with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra. Pt(1) is bonded to six equivalent Ir(1) and six equivalent Pt(1) atoms to form PtIr6Pt6 cuboctahedra that share corners with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra, faces with six equivalent Pt(1)Ir6Pt6 cuboctahedra, and faces with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra. is represented by the CIF file [CIF]
data_IrPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.778
_cell_length_b   4.778
_cell_length_c   4.778
_cell_angle_alpha   33.884
_cell_angle_beta   33.884
_cell_angle_gamma   33.884
_symmetry_Int_Tables_number   1
_cell_volume   30.222
_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  0.000  0.000  0.000  1.0
  Pt  Pt1  1  0.500  0.500  0.500  1.0
[/CIF]
.
The material structure described by PtIr crystallizes in the trigonal R-3m space group. Ir(1) is bonded to six equivalent Ir(1) and six equivalent Pt(1) atoms to form IrIr6Pt6 cuboctahedra that share corners with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra, faces with six equivalent Ir(1)Ir6Pt6 cuboctahedra, and faces with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra. Pt(1) is bonded to six equivalent Ir(1) and six equivalent Pt(1) atoms to form PtIr6Pt6 cuboctahedra that share corners with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra, edges with twelve equivalent Pt(1)Ir6Pt6 cuboctahedra, faces with six equivalent Pt(1)Ir6Pt6 cuboctahedra, and faces with twelve equivalent Ir(1)Ir6Pt6 cuboctahedra. is represented by the CIF file [CIF]
data_IrPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.778
_cell_length_b   4.778
_cell_length_c   4.778
_cell_angle_alpha   33.884
_cell_angle_beta   33.884
_cell_angle_gamma   33.884
_symmetry_Int_Tables_number   1
_cell_volume   30.222
_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  0.000  0.000  0.000  1.0
  Pt  Pt1  1  0.500  0.500  0.500  1.0
[/CIF]
.