data_AlCdRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.41
_cell_length_b   5.41
_cell_length_c   5.41
_cell_angle_alpha   145.77
_cell_angle_beta   145.77
_cell_angle_gamma   49.18
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlCdRu
_chemical_formula_sum   'Al1 Cd1 Ru1'
_cell_volume   49.88
_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  0.32  1.0
  Cd  Cd1  1  0.0  0.0  0.23  1.0
  Ru  Ru2  1  0.0  0.0  0.29  1.0

data_AlCdRu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.5
_cell_length_b   4.5
_cell_length_c   5.41
_cell_angle_alpha   90.0
_cell_angle_beta   114.59
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlCdRu
_chemical_formula_sum   'Al2 Cd2 Ru2'
_cell_volume   99.77
_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  0.68  1.0
  Cd  Cd1  2  0.0  0.0  0.77  1.0
  Ru  Ru2  2  0.0  0.0  0.71  1.0

Al Cd Ru
Al Cd Ru 0 2 o o o 1 2 o o o 
RuCdAl is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two RuCdAl clusters. Ru(1) is bonded in a linear geometry to one Cd(1) and one Al(1) atom. The Ru(1)-Cd(1) bond length is 0.34 Å. The Ru(1)-Al(1) bond length is 0.15 Å. Cd(1) is bonded in a single-bond geometry to one Ru(1) atom. Al(1) is bonded in a single-bond geometry to one Ru(1) atom.