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.
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°. Both Sn(1)-I(2) bond lengths are 2.98 Å. All Sn(1)-I(1) bond lengths are 3.05 Å. 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.