data_Al(CrCl)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.5
_cell_length_b   6.5
_cell_length_c   6.5
_cell_angle_alpha   141.43
_cell_angle_beta   141.43
_cell_angle_gamma   55.69
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al(CrCl)2
_chemical_formula_sum   'Al1 Cr2 Cl2'
_cell_volume   105.96
_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
  Cr  Cr3  1  0.0  0.0  0.16  1.0
  Cr  Cr4  1  0.0  0.0  0.33  1.0
  Cl  Cl1  1  0.0  0.15  0.87  1.0
  Cl  Cl2  1  0.15  0.0  0.87  1.0

data_Al(CrCl)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.07
_cell_length_b   6.07
_cell_length_c   6.5
_cell_angle_alpha   90.0
_cell_angle_beta   117.84
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al(CrCl)2
_chemical_formula_sum   'Al2 Cr4 Cl4'
_cell_volume   211.93
_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
  Cr  Cr1  2  0.16  0.0  0.16  1.0
  Cr  Cr2  2  0.33  0.0  0.33  1.0
  Cl  Cl3  4  0.3  0.43  0.73  1.0

Al Cr Cr Cl Cl