The material structure described by Lu2Ir3Si5 crystallizes in the orthorhombic Ibam space group. Lu(1) is bonded in a 17-coordinate geometry to two equivalent Ir(2), five equivalent Ir(1), two equivalent Si(3), four equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(2) is bonded in a 6-coordinate geometry to four equivalent Lu(1), two equivalent Si(1), and four equivalent Si(2) atoms. In the second Ir site, Ir(1) is bonded in a 5-coordinate geometry to five equivalent Lu(1), one Si(2), two equivalent Si(1), and two equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 3-coordinate geometry to four equivalent Lu(1), one Ir(2), two equivalent Ir(1), and two equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Lu(1), one Ir(1), two equivalent Ir(2), and two equivalent Si(1) atoms. In the third Si site, Si(3) is bonded in a 8-coordinate geometry to four equivalent Lu(1) and four equivalent Ir(1) atoms. is represented by the CIF file [CIF]
data_Lu2Si5Ir3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.057
_cell_length_b   8.059
_cell_length_c   8.056
_cell_angle_alpha   138.260
_cell_angle_beta   103.609
_cell_angle_gamma   91.099
_symmetry_Int_Tables_number   1
_cell_volume   322.761
_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
  Lu  Lu0  1  0.641  0.369  0.273  1.0
  Lu  Lu1  1  0.359  0.631  0.727  1.0
  Lu  Lu2  1  0.904  0.131  0.773  1.0
  Lu  Lu3  1  0.096  0.869  0.227  1.0
  Si  Si4  1  0.274  0.024  0.750  1.0
  Si  Si5  1  0.450  0.106  0.345  1.0
  Si  Si6  1  0.274  0.524  0.250  1.0
  Si  Si7  1  1.000  0.750  0.750  1.0
  Si  Si8  1  0.726  0.476  0.750  1.0
  Si  Si9  1  0.239  0.394  0.844  1.0
  Si  Si10  1  0.550  0.894  0.655  1.0
  Si  Si11  1  0.761  0.606  0.156  1.0
  Si  Si12  1  0.726  0.976  0.250  1.0
  Si  Si13  1  0.000  0.250  0.250  1.0
  Ir  Ir14  1  0.743  0.860  0.883  1.0
  Ir  Ir15  1  0.023  0.640  0.384  1.0
  Ir  Ir16  1  0.977  0.360  0.616  1.0
  Ir  Ir17  1  0.257  0.140  0.117  1.0
  Ir  Ir18  1  0.500  0.750  0.250  1.0
  Ir  Ir19  1  0.500  0.250  0.750  1.0
[/CIF]
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The material structure described by Lu2Ir3Si5 crystallizes in the orthorhombic Ibam space group. Lu(1) is bonded in a 17-coordinate geometry to two equivalent Ir(2), five equivalent Ir(1), two equivalent Si(3), four equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(2) is bonded in a 6-coordinate geometry to four equivalent Lu(1), two equivalent Si(1), and four equivalent Si(2) atoms. In the second Ir site, Ir(1) is bonded in a 5-coordinate geometry to five equivalent Lu(1), one Si(2), two equivalent Si(1), and two equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 3-coordinate geometry to four equivalent Lu(1), one Ir(2), two equivalent Ir(1), and two equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Lu(1), one Ir(1), two equivalent Ir(2), and two equivalent Si(1) atoms. In the third Si site, Si(3) is bonded in a 8-coordinate geometry to four equivalent Lu(1) and four equivalent Ir(1) atoms. is represented by the CIF file [CIF]
data_Lu2Si5Ir3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.057
_cell_length_b   8.059
_cell_length_c   8.056
_cell_angle_alpha   138.260
_cell_angle_beta   103.609
_cell_angle_gamma   91.099
_symmetry_Int_Tables_number   1
_cell_volume   322.761
_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
  Lu  Lu0  1  0.641  0.369  0.273  1.0
  Lu  Lu1  1  0.359  0.631  0.727  1.0
  Lu  Lu2  1  0.904  0.131  0.773  1.0
  Lu  Lu3  1  0.096  0.869  0.227  1.0
  Si  Si4  1  0.274  0.024  0.750  1.0
  Si  Si5  1  0.450  0.106  0.345  1.0
  Si  Si6  1  0.274  0.524  0.250  1.0
  Si  Si7  1  1.000  0.750  0.750  1.0
  Si  Si8  1  0.726  0.476  0.750  1.0
  Si  Si9  1  0.239  0.394  0.844  1.0
  Si  Si10  1  0.550  0.894  0.655  1.0
  Si  Si11  1  0.761  0.606  0.156  1.0
  Si  Si12  1  0.726  0.976  0.250  1.0
  Si  Si13  1  0.000  0.250  0.250  1.0
  Ir  Ir14  1  0.743  0.860  0.883  1.0
  Ir  Ir15  1  0.023  0.640  0.384  1.0
  Ir  Ir16  1  0.977  0.360  0.616  1.0
  Ir  Ir17  1  0.257  0.140  0.117  1.0
  Ir  Ir18  1  0.500  0.750  0.250  1.0
  Ir  Ir19  1  0.500  0.250  0.750  1.0
[/CIF]
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