data_Be2AlIr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.72
_cell_length_b   3.86
_cell_length_c   4.64
_cell_angle_alpha   90.0
_cell_angle_beta   98.72
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2AlIr
_chemical_formula_sum   'Be2 Al1 Ir1'
_cell_volume   48.04
_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
  Be  Be1  1  0.87  0.93  0.28  1.0
  Be  Be2  1  0.14  0.93  0.31  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Ir  Ir3  1  0.01  0.0  0.29  1.0

data_Be2AlIr
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.72
_cell_length_b   3.86
_cell_length_c   4.64
_cell_angle_alpha   90.0
_cell_angle_beta   98.72
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2AlIr
_chemical_formula_sum   'Be2 Al1 Ir1'
_cell_volume   48.04
_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
  Be  Be0  1  0.14  0.93  0.31  1.0
  Be  Be1  1  0.87  0.93  0.28  1.0
  Al  Al2  1  0.0  0.0  0.0  1.0
  Ir  Ir3  1  0.01  0.0  0.29  1.0

Be Be Al Ir
Be2IrAl crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Be2IrAl cluster. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a single-bond geometry to one Ir(1) and one Al(1) atom. The Be(1)-Ir(1) bond length is 0.46 Å. The Be(1)-Al(1) bond length is 1.41 Å. In the second Be site, Be(2) is bonded in a single-bond geometry to one Ir(1) and one Al(1) atom. The Be(2)-Ir(1) bond length is 0.46 Å. The Be(2)-Al(1) bond length is 1.46 Å. Ir(1) is bonded in a water-like geometry to one Be(1), one Be(2), and one Al(1) atom. The Ir(1)-Al(1) bond length is 1.36 Å. Al(1) is bonded in a 3-coordinate geometry to one Be(1), one Be(2), and one Ir(1) atom.