The structure described by OsIr4 is Copper-derived structured and crystallizes in the trigonal R-3m space group. Os(1) is bonded to six equivalent Os(1) and six equivalent Ir(1) atoms to form OsIr6Os6 cuboctahedra that share corners with six equivalent Os(1)Ir6Os6 cuboctahedra; corners with six Ir(2,2)Ir12 cuboctahedra; edges with six equivalent Os(1)Ir6Os6 cuboctahedra; edges with six Ir(2,2)Ir12 cuboctahedra; edges with twelve equivalent Ir(1)Ir9Os3 cuboctahedra; faces with six equivalent Os(1)Ir6Os6 cuboctahedra; and faces with twelve equivalent Ir(1)Ir9Os3 cuboctahedra. There are five inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to three equivalent Os(1), three equivalent Ir(2), and six equivalent Ir(1) atoms to form IrIr9Os3 cuboctahedra that share corners with three equivalent Ir(2)Ir12 cuboctahedra; corners with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with six equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine Ir(2,2)Ir12 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; faces with six equivalent Os(1)Ir6Os6 cuboctahedra; faces with six equivalent Ir(2)Ir12 cuboctahedra; and faces with six equivalent Ir(1)Ir9Os3 cuboctahedra. In the second Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. In the third Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. In the fourth Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. In the fifth Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. is represented by the CIF file [CIF]
data_Ir4Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.304
_cell_length_b   11.304
_cell_length_c   11.304
_cell_angle_alpha   13.901
_cell_angle_beta   13.901
_cell_angle_gamma   13.901
_symmetry_Int_Tables_number   1
_cell_volume   72.552
_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  0.601  0.601  0.601  1.0
  Ir  Ir1  1  0.200  0.200  0.200  1.0
  Ir  Ir2  1  0.800  0.800  0.800  1.0
  Ir  Ir3  1  0.399  0.399  0.399  1.0
  Os  Os4  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by OsIr4 is Copper-derived structured and crystallizes in the trigonal R-3m space group. Os(1) is bonded to six equivalent Os(1) and six equivalent Ir(1) atoms to form OsIr6Os6 cuboctahedra that share corners with six equivalent Os(1)Ir6Os6 cuboctahedra; corners with six Ir(2,2)Ir12 cuboctahedra; edges with six equivalent Os(1)Ir6Os6 cuboctahedra; edges with six Ir(2,2)Ir12 cuboctahedra; edges with twelve equivalent Ir(1)Ir9Os3 cuboctahedra; faces with six equivalent Os(1)Ir6Os6 cuboctahedra; and faces with twelve equivalent Ir(1)Ir9Os3 cuboctahedra. There are five inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to three equivalent Os(1), three equivalent Ir(2), and six equivalent Ir(1) atoms to form IrIr9Os3 cuboctahedra that share corners with three equivalent Ir(2)Ir12 cuboctahedra; corners with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with six equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine Ir(2,2)Ir12 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; faces with six equivalent Os(1)Ir6Os6 cuboctahedra; faces with six equivalent Ir(2)Ir12 cuboctahedra; and faces with six equivalent Ir(1)Ir9Os3 cuboctahedra. In the second Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. In the third Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. In the fourth Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. In the fifth Ir site, Ir(2) is bonded to three equivalent Ir(1) and nine Ir(2,2) atoms to form IrIr12 cuboctahedra that share corners with three equivalent Os(1)Ir6Os6 cuboctahedra; corners with three equivalent Ir(1)Ir9Os3 cuboctahedra; corners with six equivalent Ir(2)Ir12 cuboctahedra; edges with three equivalent Os(1)Ir6Os6 cuboctahedra; edges with nine equivalent Ir(1)Ir9Os3 cuboctahedra; edges with twelve Ir(2,2)Ir12 cuboctahedra; faces with six equivalent Ir(1)Ir9Os3 cuboctahedra; and faces with twelve Ir(2,2)Ir12 cuboctahedra. is represented by the CIF file [CIF]
data_Ir4Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.304
_cell_length_b   11.304
_cell_length_c   11.304
_cell_angle_alpha   13.901
_cell_angle_beta   13.901
_cell_angle_gamma   13.901
_symmetry_Int_Tables_number   1
_cell_volume   72.552
_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  0.601  0.601  0.601  1.0
  Ir  Ir1  1  0.200  0.200  0.200  1.0
  Ir  Ir2  1  0.800  0.800  0.800  1.0
  Ir  Ir3  1  0.399  0.399  0.399  1.0
  Os  Os4  1  0.000  0.000  0.000  1.0
[/CIF]
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