data_AgSn2Cl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.14
_cell_length_b   5.14
_cell_length_c   5.14
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgSn2Cl
_chemical_formula_sum   'Ag1 Sn2 Cl1'
_cell_volume   96.06
_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
  Ag  Ag0  1  0.82  0.82  0.82  1.0
  Sn  Sn2  1  0.45  0.45  0.45  1.0
  Sn  Sn3  1  0.63  0.63  0.63  1.0
  Cl  Cl1  1  0.0  0.0  0.0  1.0

data_AgSn2Cl
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.14
_cell_length_b   5.14
_cell_length_c   12.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   AgSn2Cl
_chemical_formula_sum   'Ag3 Sn6 Cl3'
_cell_volume   288.17
_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
  Ag  Ag0  3  0.0  0.0  0.18  1.0
  Sn  Sn1  3  0.0  0.0  0.37  1.0
  Sn  Sn2  3  0.0  0.0  0.55  1.0
  Cl  Cl3  3  0.0  0.0  -0.0  1.0

Ag Sn Sn Cl
AgSn2Cl crystallizes in the trigonal R3m space group. Ag(1) is bonded in a 1-coordinate geometry to one Sn(2), three equivalent Sn(1), and one Cl(1) atom. The Ag(1)-Sn(2) bond length is 2.30 Å. All Ag(1)-Sn(1) bond lengths are 2.99 Å. The Ag(1)-Cl(1) bond length is 2.30 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to three equivalent Ag(1) and one Sn(2) atom to form distorted SnAg3Sn trigonal pyramids that share corners with three equivalent Sn(2)AgSnCl3 trigonal bipyramids, corners with six equivalent Sn(1)Ag3Sn trigonal pyramids, and edges with three equivalent Cl(1)AgSn3 trigonal pyramids. The Sn(1)-Sn(2) bond length is 2.30 Å. In the second Sn site, Sn(2) is bonded to one Ag(1), one Sn(1), and three equivalent Cl(1) atoms to form distorted SnAgSnCl3 trigonal bipyramids that share corners with six equivalent Sn(2)AgSnCl3 trigonal bipyramids,  a cornercorner with one Cl(1)AgSn3 trigonal pyramid, and corners with three equivalent Sn(1)Ag3Sn trigonal pyramids. All Sn(2)-Cl(1) bond lengths are 2.99 Å. Cl(1) is bonded to one Ag(1) and three equivalent Sn(2) atoms to form distorted ClAgSn3 trigonal pyramids that share  a cornercorner with one Sn(2)AgSnCl3 trigonal bipyramid, corners with six equivalent Cl(1)AgSn3 trigonal pyramids, and edges with three equivalent Sn(1)Ag3Sn trigonal pyramids.