The compound described by Ir3Pb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ir(1) is bonded to eight equivalent Ir(1) and four equivalent Pb(1) atoms to form IrIr8Pb4 cuboctahedra that share corners with twelve equivalent Ir(1)Ir8Pb4 cuboctahedra, edges with eight equivalent Pb(1)Ir12 cuboctahedra, edges with sixteen equivalent Ir(1)Ir8Pb4 cuboctahedra, faces with four equivalent Pb(1)Ir12 cuboctahedra, and faces with fourteen equivalent Ir(1)Ir8Pb4 cuboctahedra. Pb(1) is bonded to twelve equivalent Ir(1) atoms to form PbIr12 cuboctahedra that share corners with twelve equivalent Pb(1)Ir12 cuboctahedra, edges with twenty-four equivalent Ir(1)Ir8Pb4 cuboctahedra, faces with six equivalent Pb(1)Ir12 cuboctahedra, and faces with twelve equivalent Ir(1)Ir8Pb4 cuboctahedra. is represented by the CIF file [CIF]
data_Ir3Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.052
_cell_length_b   4.052
_cell_length_c   4.052
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   66.530
_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  0.500  0.500  1.0
  Ir  Ir1  1  0.500  0.000  0.500  1.0
  Ir  Ir2  1  0.500  0.500  0.000  1.0
  Pb  Pb3  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Ir3Pb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ir(1) is bonded to eight equivalent Ir(1) and four equivalent Pb(1) atoms to form IrIr8Pb4 cuboctahedra that share corners with twelve equivalent Ir(1)Ir8Pb4 cuboctahedra, edges with eight equivalent Pb(1)Ir12 cuboctahedra, edges with sixteen equivalent Ir(1)Ir8Pb4 cuboctahedra, faces with four equivalent Pb(1)Ir12 cuboctahedra, and faces with fourteen equivalent Ir(1)Ir8Pb4 cuboctahedra. Pb(1) is bonded to twelve equivalent Ir(1) atoms to form PbIr12 cuboctahedra that share corners with twelve equivalent Pb(1)Ir12 cuboctahedra, edges with twenty-four equivalent Ir(1)Ir8Pb4 cuboctahedra, faces with six equivalent Pb(1)Ir12 cuboctahedra, and faces with twelve equivalent Ir(1)Ir8Pb4 cuboctahedra. is represented by the CIF file [CIF]
data_Ir3Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.052
_cell_length_b   4.052
_cell_length_c   4.052
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   66.530
_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  0.500  0.500  1.0
  Ir  Ir1  1  0.500  0.000  0.500  1.0
  Ir  Ir2  1  0.500  0.500  0.000  1.0
  Pb  Pb3  1  0.000  0.000  0.000  1.0
[/CIF]
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