data_BeAlRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.95
_cell_length_b   4.95
_cell_length_c   4.95
_cell_angle_alpha   145.33
_cell_angle_beta   132.54
_cell_angle_gamma   60.09
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAlRu2
_chemical_formula_sum   'Be1 Al1 Ru2'
_cell_volume   50.42
_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  0.0  0.0  0.51  1.0
  Al  Al0  1  0.0  0.99  0.03  1.0
  Ru  Ru2  1  0.0  0.99  0.22  1.0
  Ru  Ru3  1  0.0  0.0  0.1  1.0

data_BeAlRu2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.95
_cell_length_b   3.99
_cell_length_c   4.95
_cell_angle_alpha   113.73
_cell_angle_beta   107.33
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeAlRu2
_chemical_formula_sum   'Be1 Al1 Ru2'
_cell_volume   50.42
_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  0.49  0.49  0.49  1.0
  Al  Al1  1  0.97  0.96  0.96  1.0
  Ru  Ru2  1  0.78  0.77  0.77  1.0
  Ru  Ru3  1  0.9  0.9  0.9  1.0

Be Al Ru Ru
BeRu2Al is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one BeRu2Al cluster. Be(1) is bonded in a single-bond geometry to one Ru(1) atom. The Be(1)-Ru(1) bond length is 1.39 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a distorted linear geometry to one Be(1) and one Ru(2) atom. The Ru(1)-Ru(2) bond length is 0.63 Å. In the second Ru site, Ru(2) is bonded in a distorted single-bond geometry to one Ru(1) and one Al(1) atom. The Ru(2)-Al(1) bond length is 0.32 Å. Al(1) is bonded in a single-bond geometry to one Ru(2) atom.