data_Al2CdPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.97
_cell_length_b   8.97
_cell_length_c   8.97
_cell_angle_alpha   19.33
_cell_angle_beta   19.33
_cell_angle_gamma   19.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2CdPd
_chemical_formula_sum   'Al2 Cd1 Pd1'
_cell_volume   69.08
_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  0.84  1.0
  Al  Al1  1  0.0  0.0  0.55  1.0
  Cd  Cd2  1  0.0  0.0  0.19  1.0
  Pd  Pd3  1  0.0  0.0  0.0  1.0

data_Al2CdPd
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.22
_cell_length_b   3.01
_cell_length_c   8.97
_cell_angle_alpha   90.0
_cell_angle_beta   101.18
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al2CdPd
_chemical_formula_sum   'Al4 Cd2 Pd2'
_cell_volume   138.16
_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  0.16  1.0
  Al  Al1  2  0.0  0.0  0.45  1.0
  Cd  Cd2  2  0.0  0.0  0.81  1.0
  Pd  Pd3  2  0.0  0.0  0.0  1.0

Al Al Cd Pd
Al Al Cd Pd 0 3 o o + 0 1 o o o 1 1 o + - 1 1 + - o 1 1 + o - 1 2 o o o 2 3 o o o 
PdCdAl2 crystallizes in the monoclinic Cm space group. Pd(1) is bonded in a linear geometry to one Cd(1) and one Al(1) atom. The Pd(1)-Cd(1) bond length is 1.74 Å. The Pd(1)-Al(1) bond length is 1.41 Å. Cd(1) is bonded in a single-bond geometry to one Pd(1) and one Al(2) atom. The Cd(1)-Al(2) bond length is 3.15 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a single-bond geometry to one Pd(1) and one Al(2) atom. The Al(1)-Al(2) bond length is 2.66 Å. In the second Al site, Al(2) is bonded to one Cd(1), one Al(1), and six equivalent Al(2) atoms to form a mixture of distorted corner and edge-sharing AlAl7Cd hexagonal bipyramids. All Al(2)-Al(2) bond lengths are 3.01 Å.