Materials Data on SnICl by Materials Project
SnICl crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two SnICl ribbons oriented in the (1, 0, 0) direction. Sn2+ is bonded to two equivalent I1- and three equivalent Cl1- atoms to form distorted edge-sharing SnI2Cl3 square pyramids. Both Sn–I bond lengths are 3.09 Å. There are one shorter (2.63 Å) and two longer (3.04 Å) Sn–Cl bond lengths. I1- is bonded in a distorted L-shaped geometry to two equivalent Sn2+ atoms. Cl1- is bonded in a 3-coordinate geometry to three equivalent Sn2+ atoms.
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