The compound described by Ir3Nb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Nb(1) is bonded to twelve equivalent Ir(1) atoms to form NbIr12 cuboctahedra that share corners with twelve equivalent Nb(1)Ir12 cuboctahedra, edges with twenty-four equivalent Ir(1)Nb4Ir8 cuboctahedra, faces with six equivalent Nb(1)Ir12 cuboctahedra, and faces with twelve equivalent Ir(1)Nb4Ir8 cuboctahedra. Ir(1) is bonded to four equivalent Nb(1) and eight equivalent Ir(1) atoms to form distorted IrNb4Ir8 cuboctahedra that share corners with twelve equivalent Ir(1)Nb4Ir8 cuboctahedra, edges with eight equivalent Nb(1)Ir12 cuboctahedra, edges with sixteen equivalent Ir(1)Nb4Ir8 cuboctahedra, faces with four equivalent Nb(1)Ir12 cuboctahedra, and faces with fourteen equivalent Ir(1)Nb4Ir8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NbIr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.913
_cell_length_b   3.913
_cell_length_c   3.913
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   59.933
_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
  Nb  Nb0  1  0.000  0.000  0.000  1.0
  Ir  Ir1  1  0.500  0.500  0.000  1.0
  Ir  Ir2  1  0.500  0.000  0.500  1.0
  Ir  Ir3  1  0.000  0.500  0.500  1.0
[/CIF]
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The compound described by Ir3Nb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Nb(1) is bonded to twelve equivalent Ir(1) atoms to form NbIr12 cuboctahedra that share corners with twelve equivalent Nb(1)Ir12 cuboctahedra, edges with twenty-four equivalent Ir(1)Nb4Ir8 cuboctahedra, faces with six equivalent Nb(1)Ir12 cuboctahedra, and faces with twelve equivalent Ir(1)Nb4Ir8 cuboctahedra. Ir(1) is bonded to four equivalent Nb(1) and eight equivalent Ir(1) atoms to form distorted IrNb4Ir8 cuboctahedra that share corners with twelve equivalent Ir(1)Nb4Ir8 cuboctahedra, edges with eight equivalent Nb(1)Ir12 cuboctahedra, edges with sixteen equivalent Ir(1)Nb4Ir8 cuboctahedra, faces with four equivalent Nb(1)Ir12 cuboctahedra, and faces with fourteen equivalent Ir(1)Nb4Ir8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NbIr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.913
_cell_length_b   3.913
_cell_length_c   3.913
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   59.933
_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
  Nb  Nb0  1  0.000  0.000  0.000  1.0
  Ir  Ir1  1  0.500  0.500  0.000  1.0
  Ir  Ir2  1  0.500  0.000  0.500  1.0
  Ir  Ir3  1  0.000  0.500  0.500  1.0
[/CIF]
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