data_AlIr2Pd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.36
_cell_length_b   5.36
_cell_length_c   2.76
_cell_angle_alpha   104.18
_cell_angle_beta   104.18
_cell_angle_gamma   120.45
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlIr2Pd
_chemical_formula_sum   'Al1 Ir2 Pd1'
_cell_volume   59.5
_cell_formula_units_Z   1
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
  Al  Al0  1  0.0  0.0  0.0  1.0
  Ir  Ir1  1  0.65  0.33  0.2  1.0
  Ir  Ir2  1  0.65  0.67  0.2  1.0
  Pd  Pd3  1  0.66  0.0  0.0  1.0

data_AlIr2Pd
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.76
_cell_length_b   4.63
_cell_length_c   5.36
_cell_angle_alpha   115.13
_cell_angle_beta   104.18
_cell_angle_gamma   91.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlIr2Pd
_chemical_formula_sum   'Al1 Ir2 Pd1'
_cell_volume   59.5
_cell_formula_units_Z   1
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
  Al  Al0  1  0.0  0.0  0.0  1.0
  Pd  Pd1  1  -0.0  0.0  0.66  1.0
  Ir  Ir2  1  0.53  0.33  0.98  1.0
  Ir  Ir3  1  0.87  0.67  0.32  1.0

Al Ir Ir Pd
Ir2PdAl crystallizes in the triclinic P1 space group. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a distorted T-shaped geometry to one Ir(2), one Pd(1), and one Al(1) atom. The Ir(1)-Ir(2) bond length is 1.86 Å. The Ir(1)-Pd(1) bond length is 1.74 Å. The Ir(1)-Al(1) bond length is 2.81 Å. In the second Ir site, Ir(2) is bonded in a 4-coordinate geometry to one Ir(1), one Pd(1), and two equivalent Al(1) atoms. The Ir(2)-Pd(1) bond length is 1.94 Å. There is one shorter (2.05 Å) and one longer (2.13 Å) Ir(2)-Al(1) bond length. Pd(1) is bonded in a 1-coordinate geometry to one Ir(1), one Ir(2), and one Al(1) atom. The Pd(1)-Al(1) bond length is 1.81 Å. Al(1) is bonded in a 4-coordinate geometry to one Ir(1), two equivalent Ir(2), and one Pd(1) atom.