data_Al2CdRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.14
_cell_length_b   4.14
_cell_length_c   3.69
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2CdRh
_chemical_formula_sum   'Al2 Cd1 Rh1'
_cell_volume   63.45
_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  0.07  0.85  1.0
  Al  Al1  1  0.07  0.0  0.85  1.0
  Cd  Cd2  1  0.07  0.07  0.0  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0

data_Al2CdRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.86
_cell_length_b   5.86
_cell_length_c   3.69
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al2CdRh
_chemical_formula_sum   'Al4 Cd2 Rh2'
_cell_volume   126.9
_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  4  0.04  0.04  0.85  1.0
  Cd  Cd1  2  0.07  0.0  0.0  1.0
  Rh  Rh2  2  0.0  0.0  0.0  1.0

Al Al Cd Rh
Al Al Cd Rh 0 1 o o o 2 3 o o o 
RhCdAl2 is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two RhCdAl2 clusters. Rh(1) is bonded in a distorted single-bond geometry to one Cd(1) and two equivalent Al(1) atoms. The Rh(1)-Cd(1) bond length is 0.42 Å. Both Rh(1)-Al(1) bond lengths are 0.64 Å. Cd(1) is bonded in a single-bond geometry to one Rh(1) and two equivalent Al(1) atoms. Both Cd(1)-Al(1) bond lengths are 0.64 Å. Al(1) is bonded in a 3-coordinate geometry to one Rh(1), one Cd(1), and one Al(1) atom. The Al(1)-Al(1) bond length is 0.42 Å.