The compound described by La(IrB)4 is alpha Pu-derived structured and crystallizes in the tetragonal P4_2/n space group. La(1) is bonded in a 20-coordinate geometry to eight equivalent Ir(1) and twelve equivalent B(1) atoms. Ir(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and four equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to three equivalent La(1), four equivalent Ir(1), and one B(1) atom. is represented by the CIF file [CIF]
data_La(BIr)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.972
_cell_length_b   7.725
_cell_length_c   7.725
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   237.048
_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
  La  La0  1  0.250  0.750  0.750  1.0
  La  La1  1  0.750  0.250  0.250  1.0
  B  B2  1  0.856  0.030  0.908  1.0
  B  B3  1  0.144  0.530  0.408  1.0
  B  B4  1  0.356  0.092  0.530  1.0
  B  B5  1  0.356  0.408  0.970  1.0
  B  B6  1  0.856  0.470  0.592  1.0
  B  B7  1  0.144  0.970  0.092  1.0
  B  B8  1  0.644  0.908  0.470  1.0
  B  B9  1  0.644  0.592  0.030  1.0
  Ir  Ir10  1  0.356  0.359  0.591  1.0
  Ir  Ir11  1  0.356  0.141  0.909  1.0
  Ir  Ir12  1  0.856  0.409  0.859  1.0
  Ir  Ir13  1  0.144  0.909  0.359  1.0
  Ir  Ir14  1  0.644  0.641  0.409  1.0
  Ir  Ir15  1  0.644  0.859  0.091  1.0
  Ir  Ir16  1  0.144  0.591  0.141  1.0
  Ir  Ir17  1  0.856  0.091  0.641  1.0
[/CIF]
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The compound described by La(IrB)4 is alpha Pu-derived structured and crystallizes in the tetragonal P4_2/n space group. La(1) is bonded in a 20-coordinate geometry to eight equivalent Ir(1) and twelve equivalent B(1) atoms. Ir(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and four equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to three equivalent La(1), four equivalent Ir(1), and one B(1) atom. is represented by the CIF file [CIF]
data_La(BIr)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.972
_cell_length_b   7.725
_cell_length_c   7.725
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   237.048
_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
  La  La0  1  0.250  0.750  0.750  1.0
  La  La1  1  0.750  0.250  0.250  1.0
  B  B2  1  0.856  0.030  0.908  1.0
  B  B3  1  0.144  0.530  0.408  1.0
  B  B4  1  0.356  0.092  0.530  1.0
  B  B5  1  0.356  0.408  0.970  1.0
  B  B6  1  0.856  0.470  0.592  1.0
  B  B7  1  0.144  0.970  0.092  1.0
  B  B8  1  0.644  0.908  0.470  1.0
  B  B9  1  0.644  0.592  0.030  1.0
  Ir  Ir10  1  0.356  0.359  0.591  1.0
  Ir  Ir11  1  0.356  0.141  0.909  1.0
  Ir  Ir12  1  0.856  0.409  0.859  1.0
  Ir  Ir13  1  0.144  0.909  0.359  1.0
  Ir  Ir14  1  0.644  0.641  0.409  1.0
  Ir  Ir15  1  0.644  0.859  0.091  1.0
  Ir  Ir16  1  0.144  0.591  0.141  1.0
  Ir  Ir17  1  0.856  0.091  0.641  1.0
[/CIF]
.