The compound described by Ir3La crystallizes in the trigonal R-3m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to three equivalent Ir(3) and nine equivalent Ir(1) atoms. In the second La site, La(2) is bonded in a 18-coordinate geometry to six equivalent Ir(2) and twelve equivalent Ir(1) atoms. There are three inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to two equivalent La(2), three equivalent La(1), one Ir(3), two equivalent Ir(2), and four equivalent Ir(1) atoms to form IrLa5Ir7 cuboctahedra that share corners with two equivalent Ir(3)La6Ir6 cuboctahedra, corners with fifteen equivalent Ir(1)La5Ir7 cuboctahedra, edges with eight equivalent Ir(1)La5Ir7 cuboctahedra, faces with three equivalent Ir(3)La6Ir6 cuboctahedra, and faces with eleven equivalent Ir(1)La5Ir7 cuboctahedra. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to three equivalent La(2) and six equivalent Ir(1) atoms. In the third Ir site, Ir(3) is bonded to six equivalent La(1) and six equivalent Ir(1) atoms to form IrLa6Ir6 cuboctahedra that share corners with twelve equivalent Ir(1)La5Ir7 cuboctahedra, edges with six equivalent Ir(3)La6Ir6 cuboctahedra, and faces with eighteen equivalent Ir(1)La5Ir7 cuboctahedra. is represented by the CIF file [CIF]
data_LaIr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.392
_cell_length_b   9.392
_cell_length_c   9.392
_cell_angle_alpha   33.371
_cell_angle_beta   33.371
_cell_angle_gamma   33.371
_symmetry_Int_Tables_number   1
_cell_volume   223.210
_cell_formula_units_Z   3
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
  La  La0  1  0.860  0.860  0.860  1.0
  La  La1  1  0.140  0.140  0.140  1.0
  La  La2  1  0.000  0.000  0.000  1.0
  Ir  Ir3  1  0.423  0.915  0.423  1.0
  Ir  Ir4  1  0.423  0.423  0.915  1.0
  Ir  Ir5  1  0.915  0.423  0.423  1.0
  Ir  Ir6  1  0.577  0.085  0.577  1.0
  Ir  Ir7  1  0.577  0.577  0.085  1.0
  Ir  Ir8  1  0.085  0.577  0.577  1.0
  Ir  Ir9  1  0.669  0.669  0.669  1.0
  Ir  Ir10  1  0.331  0.331  0.331  1.0
  Ir  Ir11  1  0.500  0.500  0.500  1.0
[/CIF]
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The compound described by Ir3La crystallizes in the trigonal R-3m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to three equivalent Ir(3) and nine equivalent Ir(1) atoms. In the second La site, La(2) is bonded in a 18-coordinate geometry to six equivalent Ir(2) and twelve equivalent Ir(1) atoms. There are three inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to two equivalent La(2), three equivalent La(1), one Ir(3), two equivalent Ir(2), and four equivalent Ir(1) atoms to form IrLa5Ir7 cuboctahedra that share corners with two equivalent Ir(3)La6Ir6 cuboctahedra, corners with fifteen equivalent Ir(1)La5Ir7 cuboctahedra, edges with eight equivalent Ir(1)La5Ir7 cuboctahedra, faces with three equivalent Ir(3)La6Ir6 cuboctahedra, and faces with eleven equivalent Ir(1)La5Ir7 cuboctahedra. In the second Ir site, Ir(2) is bonded in a 9-coordinate geometry to three equivalent La(2) and six equivalent Ir(1) atoms. In the third Ir site, Ir(3) is bonded to six equivalent La(1) and six equivalent Ir(1) atoms to form IrLa6Ir6 cuboctahedra that share corners with twelve equivalent Ir(1)La5Ir7 cuboctahedra, edges with six equivalent Ir(3)La6Ir6 cuboctahedra, and faces with eighteen equivalent Ir(1)La5Ir7 cuboctahedra. is represented by the CIF file [CIF]
data_LaIr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.392
_cell_length_b   9.392
_cell_length_c   9.392
_cell_angle_alpha   33.371
_cell_angle_beta   33.371
_cell_angle_gamma   33.371
_symmetry_Int_Tables_number   1
_cell_volume   223.210
_cell_formula_units_Z   3
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
  La  La0  1  0.860  0.860  0.860  1.0
  La  La1  1  0.140  0.140  0.140  1.0
  La  La2  1  0.000  0.000  0.000  1.0
  Ir  Ir3  1  0.423  0.915  0.423  1.0
  Ir  Ir4  1  0.423  0.423  0.915  1.0
  Ir  Ir5  1  0.915  0.423  0.423  1.0
  Ir  Ir6  1  0.577  0.085  0.577  1.0
  Ir  Ir7  1  0.577  0.577  0.085  1.0
  Ir  Ir8  1  0.085  0.577  0.577  1.0
  Ir  Ir9  1  0.669  0.669  0.669  1.0
  Ir  Ir10  1  0.331  0.331  0.331  1.0
  Ir  Ir11  1  0.500  0.500  0.500  1.0
[/CIF]
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