The material structure described by Ba(IrSi)2 is alpha Pu-derived structured and crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 15-coordinate geometry to three equivalent Ir(2), four equivalent Ir(1), four equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Si(1), and three equivalent Si(2) atoms. In the second Ir site, Ir(2) is bonded in a 7-coordinate geometry to three equivalent Ba(1), one Si(2), and three equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Ir(1), and three equivalent Ir(2) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Ir(2), and three equivalent Ir(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba(SiIr)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.734
_cell_length_b   7.756
_cell_length_c   7.930
_cell_angle_alpha   91.808
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   413.983
_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
  Ba  Ba0  1  0.619  0.998  0.235  1.0
  Ba  Ba1  1  0.119  0.502  0.765  1.0
  Ba  Ba2  1  0.881  0.498  0.235  1.0
  Ba  Ba3  1  0.381  0.002  0.765  1.0
  Si  Si4  1  0.581  0.628  0.926  1.0
  Si  Si5  1  0.852  0.814  0.564  1.0
  Si  Si6  1  0.352  0.686  0.436  1.0
  Si  Si7  1  0.148  0.186  0.436  1.0
  Si  Si8  1  0.081  0.872  0.074  1.0
  Si  Si9  1  0.419  0.372  0.074  1.0
  Si  Si10  1  0.919  0.128  0.926  1.0
  Si  Si11  1  0.648  0.314  0.564  1.0
  Ir  Ir12  1  0.605  0.614  0.621  1.0
  Ir  Ir13  1  0.395  0.386  0.379  1.0
  Ir  Ir14  1  0.895  0.114  0.621  1.0
  Ir  Ir15  1  0.834  0.830  0.863  1.0
  Ir  Ir16  1  0.334  0.670  0.137  1.0
  Ir  Ir17  1  0.166  0.170  0.137  1.0
  Ir  Ir18  1  0.666  0.330  0.863  1.0
  Ir  Ir19  1  0.105  0.886  0.379  1.0
[/CIF]
.
The material structure described by Ba(IrSi)2 is alpha Pu-derived structured and crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 15-coordinate geometry to three equivalent Ir(2), four equivalent Ir(1), four equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Si(1), and three equivalent Si(2) atoms. In the second Ir site, Ir(2) is bonded in a 7-coordinate geometry to three equivalent Ba(1), one Si(2), and three equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Ir(1), and three equivalent Ir(2) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Ir(2), and three equivalent Ir(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba(SiIr)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.734
_cell_length_b   7.756
_cell_length_c   7.930
_cell_angle_alpha   91.808
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   413.983
_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
  Ba  Ba0  1  0.619  0.998  0.235  1.0
  Ba  Ba1  1  0.119  0.502  0.765  1.0
  Ba  Ba2  1  0.881  0.498  0.235  1.0
  Ba  Ba3  1  0.381  0.002  0.765  1.0
  Si  Si4  1  0.581  0.628  0.926  1.0
  Si  Si5  1  0.852  0.814  0.564  1.0
  Si  Si6  1  0.352  0.686  0.436  1.0
  Si  Si7  1  0.148  0.186  0.436  1.0
  Si  Si8  1  0.081  0.872  0.074  1.0
  Si  Si9  1  0.419  0.372  0.074  1.0
  Si  Si10  1  0.919  0.128  0.926  1.0
  Si  Si11  1  0.648  0.314  0.564  1.0
  Ir  Ir12  1  0.605  0.614  0.621  1.0
  Ir  Ir13  1  0.395  0.386  0.379  1.0
  Ir  Ir14  1  0.895  0.114  0.621  1.0
  Ir  Ir15  1  0.834  0.830  0.863  1.0
  Ir  Ir16  1  0.334  0.670  0.137  1.0
  Ir  Ir17  1  0.166  0.170  0.137  1.0
  Ir  Ir18  1  0.666  0.330  0.863  1.0
  Ir  Ir19  1  0.105  0.886  0.379  1.0
[/CIF]
.