The material structure described by YIrGe2 crystallizes in the orthorhombic Immm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 15-coordinate geometry to six equivalent Ir(1), one Ge(3), two equivalent Ge(1), and six equivalent Ge(2) atoms. In the second Y site, Y(2) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Ge(2), four equivalent Ge(1), and four equivalent Ge(3) atoms. Ir(1) is bonded in a 10-coordinate geometry to two equivalent Y(2), three equivalent Y(1), one Ge(1), one Ge(3), and three equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Y(1), four equivalent Y(2), two equivalent Ir(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to one Y(2), three equivalent Y(1), three equivalent Ir(1), and one Ge(2) atom. In the third Ge site, Ge(3) is bonded in a 2-coordinate geometry to one Y(1), four equivalent Y(2), and two equivalent Ir(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_YGe2Ir
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.419
_cell_length_b   9.419
_cell_length_c   9.419
_cell_angle_alpha   153.809
_cell_angle_beta   124.027
_cell_angle_gamma   62.812
_symmetry_Int_Tables_number   1
_cell_volume   303.311
_cell_formula_units_Z   4
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  0.294  0.794  0.500  1.0
  Y  Y1  1  0.261  0.000  0.261  1.0
  Y  Y2  1  0.739  0.000  0.739  1.0
  Y  Y3  1  0.706  0.206  0.500  1.0
  Ge  Ge4  1  0.577  0.577  0.000  1.0
  Ge  Ge5  1  0.952  0.799  0.153  1.0
  Ge  Ge6  1  0.646  0.799  0.847  1.0
  Ge  Ge7  1  0.048  0.201  0.847  1.0
  Ge  Ge8  1  0.923  0.423  0.500  1.0
  Ge  Ge9  1  0.423  0.423  0.000  1.0
  Ge  Ge10  1  0.077  0.577  0.500  1.0
  Ge  Ge11  1  0.354  0.201  0.153  1.0
  Ir  Ir12  1  0.897  0.645  0.251  1.0
  Ir  Ir13  1  0.103  0.355  0.749  1.0
  Ir  Ir14  1  0.606  0.355  0.251  1.0
  Ir  Ir15  1  0.394  0.645  0.749  1.0
[/CIF]
.
The material structure described by YIrGe2 crystallizes in the orthorhombic Immm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 15-coordinate geometry to six equivalent Ir(1), one Ge(3), two equivalent Ge(1), and six equivalent Ge(2) atoms. In the second Y site, Y(2) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Ge(2), four equivalent Ge(1), and four equivalent Ge(3) atoms. Ir(1) is bonded in a 10-coordinate geometry to two equivalent Y(2), three equivalent Y(1), one Ge(1), one Ge(3), and three equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Y(1), four equivalent Y(2), two equivalent Ir(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to one Y(2), three equivalent Y(1), three equivalent Ir(1), and one Ge(2) atom. In the third Ge site, Ge(3) is bonded in a 2-coordinate geometry to one Y(1), four equivalent Y(2), and two equivalent Ir(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_YGe2Ir
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.419
_cell_length_b   9.419
_cell_length_c   9.419
_cell_angle_alpha   153.809
_cell_angle_beta   124.027
_cell_angle_gamma   62.812
_symmetry_Int_Tables_number   1
_cell_volume   303.311
_cell_formula_units_Z   4
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  0.294  0.794  0.500  1.0
  Y  Y1  1  0.261  0.000  0.261  1.0
  Y  Y2  1  0.739  0.000  0.739  1.0
  Y  Y3  1  0.706  0.206  0.500  1.0
  Ge  Ge4  1  0.577  0.577  0.000  1.0
  Ge  Ge5  1  0.952  0.799  0.153  1.0
  Ge  Ge6  1  0.646  0.799  0.847  1.0
  Ge  Ge7  1  0.048  0.201  0.847  1.0
  Ge  Ge8  1  0.923  0.423  0.500  1.0
  Ge  Ge9  1  0.423  0.423  0.000  1.0
  Ge  Ge10  1  0.077  0.577  0.500  1.0
  Ge  Ge11  1  0.354  0.201  0.153  1.0
  Ir  Ir12  1  0.897  0.645  0.251  1.0
  Ir  Ir13  1  0.103  0.355  0.749  1.0
  Ir  Ir14  1  0.606  0.355  0.251  1.0
  Ir  Ir15  1  0.394  0.645  0.749  1.0
[/CIF]
.