data_CdSnCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CdSnCl2
_chemical_formula_sum   'Cd1 Sn1 Cl2'
_cell_volume   98.76
_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
  Cd  Cd0  1  0.67  0.67  0.67  1.0
  Sn  Sn3  1  0.5  0.5  0.5  1.0
  Cl  Cl1  1  0.0  0.0  0.0  1.0
  Cl  Cl2  1  0.83  0.83  0.83  1.0

data_CdSnCl2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   12.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CdSnCl2
_chemical_formula_sum   'Cd3 Sn3 Cl6'
_cell_volume   296.29
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Cd  Cd0  3  0.0  0.0  0.33  1.0
  Sn  Sn1  3  0.0  0.0  0.5  1.0
  Cl  Cl2  3  0.0  0.0  -0.0  1.0
  Cl  Cl3  3  0.0  0.0  0.17  1.0

Cd Sn Cl Cl
CdSnCl2 crystallizes in the trigonal R3m space group. Cd(1) is bonded to one Sn(1), one Cl(2), and three equivalent Cl(1) atoms to form distorted CdSnCl4 trigonal bipyramids that share corners with six equivalent Cd(1)SnCl4 trigonal bipyramids,  a cornercorner with one Cl(1)Cd3Cl trigonal pyramid, and corners with three equivalent Sn(1)CdCl3 trigonal pyramids. The Cd(1)-Sn(1) bond length is 2.10 Å. The Cd(1)-Cl(2) bond length is 2.10 Å. All Cd(1)-Cl(1) bond lengths are 3.00 Å. Sn(1) is bonded to one Cd(1) and three equivalent Cl(2) atoms to form SnCdCl3 trigonal pyramids that share corners with three equivalent Cd(1)SnCl4 trigonal bipyramids, corners with six equivalent Sn(1)CdCl3 trigonal pyramids, and edges with three equivalent Cl(1)Cd3Cl trigonal pyramids. All Sn(1)-Cl(2) bond lengths are 3.00 Å. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to three equivalent Cd(1) and one Cl(2) atom to form ClCd3Cl trigonal pyramids that share  a cornercorner with one Cd(1)SnCl4 trigonal bipyramid, corners with six equivalent Cl(1)Cd3Cl trigonal pyramids, and edges with three equivalent Sn(1)CdCl3 trigonal pyramids. The Cl(1)-Cl(2) bond length is 2.10 Å. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to one Cd(1), three equivalent Sn(1), and one Cl(1) atom.