Materials Data on SnIBr by Materials Project
SnIBr crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two SnIBr ribbons oriented in the (1, 0, 0) direction. Sn2+ is bonded to two equivalent I1- and three equivalent Br1- atoms to form edge-sharing SnI2Br3 square pyramids. Both Sn–I bond lengths are 3.12 Å. There are one shorter (2.81 Å) and two longer (3.15 Å) Sn–Br bond lengths. I1- is bonded in a distorted L-shaped geometry to two equivalent Sn2+ atoms. Br1- is bonded in a 3-coordinate geometry to three equivalent Sn2+ atoms.
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