data_AlAgRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.01
_cell_length_b   9.01
_cell_length_c   9.01
_cell_angle_alpha   17.82
_cell_angle_beta   17.82
_cell_angle_gamma   17.82
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlAgRu2
_chemical_formula_sum   'Al1 Ag1 Ru2'
_cell_volume   59.72
_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  Al1  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.0  0.0  0.29  1.0
  Ru  Ru2  1  0.0  0.0  0.84  1.0
  Ru  Ru3  1  0.0  0.0  0.74  1.0

data_AlAgRu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.83
_cell_length_b   2.79
_cell_length_c   9.01
_cell_angle_alpha   90.0
_cell_angle_beta   100.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlAgRu2
_chemical_formula_sum   'Al2 Ag2 Ru4'
_cell_volume   119.43
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.0  1.0
  Ag  Ag1  2  -0.0  0.0  0.71  1.0
  Ru  Ru2  2  -0.0  0.0  0.26  1.0
  Ru  Ru3  2  -0.0  0.0  0.16  1.0

Al Ag Ru Ru
Ru2AgAl crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ru2AgAl clusters. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a linear geometry to one Ru(2) and one Al(1) atom. The Ru(1)-Ru(2) bond length is 0.89 Å. The Ru(1)-Al(1) bond length is 1.43 Å. In the second Ru site, Ru(2) is bonded in a single-bond geometry to one Ru(1) atom. Ag(1) is bonded in a distorted single-bond geometry to one Al(1) atom. The Ag(1)-Al(1) bond length is 2.63 Å. Al(1) is bonded in a single-bond geometry to one Ru(1) and one Ag(1) atom.