The structure described by SnI3 crystallizes in the tetragonal I4/mcm space group. Sn(1) is bonded to two equivalent I(2) and four equivalent I(1) atoms to form corner-sharing SnI6 octahedra. The corner-sharing octahedral tilt angles range from 0-33°. There are two inequivalent I sites. In the first I site, I(2) is bonded in a linear geometry to two equivalent Sn(1) atoms. In the second I site, I(1) is bonded in a bent 150 degrees geometry to two equivalent Sn(1) atoms. is represented by the CIF card [CIF]
data_SnI3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.354
_cell_length_b   8.354
_cell_length_c   8.354
_cell_angle_alpha   120.615
_cell_angle_beta   120.615
_cell_angle_gamma   88.938
_symmetry_Int_Tables_number   1
_cell_volume   408.406
_cell_formula_units_Z   2
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
  Sn  Sn0  1  0.000  0.000  0.000  1.0
  Sn  Sn1  1  0.500  0.500  0.000  1.0
  I  I2  1  0.324  0.176  0.500  1.0
  I  I3  1  0.676  0.824  0.500  1.0
  I  I4  1  0.824  0.324  0.148  1.0
  I  I5  1  0.176  0.676  0.852  1.0
  I  I6  1  0.750  0.750  0.000  1.0
  I  I7  1  0.250  0.250  0.000  1.0
[/CIF]
.
The structure described by SnI3 crystallizes in the tetragonal I4/mcm space group. Sn(1) is bonded to two equivalent I(2) and four equivalent I(1) atoms to form corner-sharing SnI6 octahedra. The corner-sharing octahedral tilt angles range from 0-33°. There are two inequivalent I sites. In the first I site, I(2) is bonded in a linear geometry to two equivalent Sn(1) atoms. In the second I site, I(1) is bonded in a bent 150 degrees geometry to two equivalent Sn(1) atoms. is represented by the CIF card [CIF]
data_SnI3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.354
_cell_length_b   8.354
_cell_length_c   8.354
_cell_angle_alpha   120.615
_cell_angle_beta   120.615
_cell_angle_gamma   88.938
_symmetry_Int_Tables_number   1
_cell_volume   408.406
_cell_formula_units_Z   2
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
  Sn  Sn0  1  0.000  0.000  0.000  1.0
  Sn  Sn1  1  0.500  0.500  0.000  1.0
  I  I2  1  0.324  0.176  0.500  1.0
  I  I3  1  0.676  0.824  0.500  1.0
  I  I4  1  0.824  0.324  0.148  1.0
  I  I5  1  0.176  0.676  0.852  1.0
  I  I6  1  0.750  0.750  0.000  1.0
  I  I7  1  0.250  0.250  0.000  1.0
[/CIF]
.