Materials Data on SmBr3 by Materials Project
SmBr3 crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two SmBr3 sheets oriented in the (0, 1, 0) direction. Sm3+ is bonded in a 8-coordinate geometry to eight Br1- atoms. There are a spread of Sm–Br bond distances ranging from 2.88–3.18 Å. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sm3+ atoms. In the second Br1- site, Br1- is bonded in an L-shaped geometry to two equivalent Sm3+ atoms.
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