data_AlPdCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.3
_cell_length_b   3.3
_cell_length_c   6.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlPdCl2
_chemical_formula_sum   'Al1 Pd1 Cl2'
_cell_volume   73.93
_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  0.0  1.0
  Pd  Pd3  1  0.0  0.0  0.4  1.0
  Cl  Cl1  1  0.65  0.65  0.66  1.0
  Cl  Cl2  1  0.65  0.65  0.14  1.0

data_AlPdCl2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.66
_cell_length_b   4.66
_cell_length_c   6.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlPdCl2
_chemical_formula_sum   'Al2 Pd2 Cl4'
_cell_volume   147.86
_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
  Pd  Pd1  2  0.0  0.0  0.4  1.0
  Cl  Cl2  2  0.15  0.5  0.14  1.0
  Cl  Cl3  2  0.15  0.5  0.66  1.0

Al Pd Cl Cl
Al Pd Cl Cl 0 3 - - o 0 1 o o o 0 2 o - - 0 2 - o - 0 2 - - - 1 3 - - o 1 3 - o o 1 3 o - o 1 2 - - o 1 2 - o o 1 2 o - o 2 2 + o o 2 2 o + o 2 3 o o + 
PdAlCl2 crystallizes in the monoclinic Cm space group. Pd(1) is bonded in a 2-coordinate geometry to one Cl(2) and three equivalent Cl(1) atoms. The Pd(1)-Cl(2) bond length is 2.41 Å. There is one shorter (2.41 Å) and two longer (3.00 Å) Pd(1)-Cl(1) bond lengths. Al(1) is bonded in a distorted single-bond geometry to one Cl(1) and one Cl(2) atom. The Al(1)-Cl(1) bond length is 2.84 Å. The Al(1)-Cl(2) bond length is 1.90 Å. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 4-coordinate geometry to three equivalent Pd(1) and one Al(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to one Pd(1) and one Al(1) atom.