The structure described by Y2(IrAl3)3 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded in a 17-coordinate geometry to two equivalent Ir(2), four equivalent Ir(1), one Al(1), two equivalent Al(3), two equivalent Al(4), and six equivalent Al(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(2) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Ir(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Y(1), one Ir(2), and two equivalent Ir(1) atoms. In the third Al site, Al(3) is bonded in a 3-coordinate geometry to two equivalent Y(1), one Ir(2), and two equivalent Ir(1) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Ir(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2(Al3Ir)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.506
_cell_length_b   7.506
_cell_length_c   9.440
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.500
_symmetry_Int_Tables_number   1
_cell_volume   462.951
_cell_formula_units_Z   2
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
  Y  Y0  1  0.995  0.671  0.250  1.0
  Y  Y1  1  0.005  0.329  0.750  1.0
  Y  Y2  1  0.671  0.995  0.250  1.0
  Y  Y3  1  0.329  0.005  0.750  1.0
  Al  Al4  1  0.130  0.130  0.250  1.0
  Al  Al5  1  0.870  0.870  0.750  1.0
  Al  Al6  1  0.002  0.335  0.073  1.0
  Al  Al7  1  0.998  0.665  0.927  1.0
  Al  Al8  1  0.998  0.665  0.573  1.0
  Al  Al9  1  0.335  0.002  0.427  1.0
  Al  Al10  1  0.002  0.335  0.427  1.0
  Al  Al11  1  0.665  0.998  0.573  1.0
  Al  Al12  1  0.665  0.998  0.927  1.0
  Al  Al13  1  0.335  0.002  0.073  1.0
  Al  Al14  1  0.334  0.334  0.550  1.0
  Al  Al15  1  0.666  0.666  0.450  1.0
  Al  Al16  1  0.666  0.666  0.050  1.0
  Al  Al17  1  0.334  0.334  0.950  1.0
  Al  Al18  1  0.339  0.547  0.250  1.0
  Al  Al19  1  0.661  0.453  0.750  1.0
  Al  Al20  1  0.547  0.339  0.250  1.0
  Al  Al21  1  0.453  0.661  0.750  1.0
  Ir  Ir22  1  0.672  0.328  0.000  1.0
  Ir  Ir23  1  0.328  0.672  0.000  1.0
  Ir  Ir24  1  0.328  0.672  0.500  1.0
  Ir  Ir25  1  0.672  0.328  0.500  1.0
  Ir  Ir26  1  0.000  0.000  0.000  1.0
  Ir  Ir27  1  0.000  0.000  0.500  1.0
[/CIF]
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The structure described by Y2(IrAl3)3 crystallizes in the orthorhombic Cmcm space group. Y(1) is bonded in a 17-coordinate geometry to two equivalent Ir(2), four equivalent Ir(1), one Al(1), two equivalent Al(3), two equivalent Al(4), and six equivalent Al(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(3), two equivalent Al(4), and four equivalent Al(2) atoms. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent Al(1), two equivalent Al(3), and four equivalent Al(2) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Ir(2) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Y(1), one Ir(2), and two equivalent Ir(1) atoms. In the third Al site, Al(3) is bonded in a 3-coordinate geometry to two equivalent Y(1), one Ir(2), and two equivalent Ir(1) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Y(1) and two equivalent Ir(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2(Al3Ir)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.506
_cell_length_b   7.506
_cell_length_c   9.440
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.500
_symmetry_Int_Tables_number   1
_cell_volume   462.951
_cell_formula_units_Z   2
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
  Y  Y0  1  0.995  0.671  0.250  1.0
  Y  Y1  1  0.005  0.329  0.750  1.0
  Y  Y2  1  0.671  0.995  0.250  1.0
  Y  Y3  1  0.329  0.005  0.750  1.0
  Al  Al4  1  0.130  0.130  0.250  1.0
  Al  Al5  1  0.870  0.870  0.750  1.0
  Al  Al6  1  0.002  0.335  0.073  1.0
  Al  Al7  1  0.998  0.665  0.927  1.0
  Al  Al8  1  0.998  0.665  0.573  1.0
  Al  Al9  1  0.335  0.002  0.427  1.0
  Al  Al10  1  0.002  0.335  0.427  1.0
  Al  Al11  1  0.665  0.998  0.573  1.0
  Al  Al12  1  0.665  0.998  0.927  1.0
  Al  Al13  1  0.335  0.002  0.073  1.0
  Al  Al14  1  0.334  0.334  0.550  1.0
  Al  Al15  1  0.666  0.666  0.450  1.0
  Al  Al16  1  0.666  0.666  0.050  1.0
  Al  Al17  1  0.334  0.334  0.950  1.0
  Al  Al18  1  0.339  0.547  0.250  1.0
  Al  Al19  1  0.661  0.453  0.750  1.0
  Al  Al20  1  0.547  0.339  0.250  1.0
  Al  Al21  1  0.453  0.661  0.750  1.0
  Ir  Ir22  1  0.672  0.328  0.000  1.0
  Ir  Ir23  1  0.328  0.672  0.000  1.0
  Ir  Ir24  1  0.328  0.672  0.500  1.0
  Ir  Ir25  1  0.672  0.328  0.500  1.0
  Ir  Ir26  1  0.000  0.000  0.000  1.0
  Ir  Ir27  1  0.000  0.000  0.500  1.0
[/CIF]
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