Materials Data on SnHg3 by Materials Project
Hg3Sn crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 12-coordinate geometry to eight Hg and four equivalent Sn atoms. There are a spread of Hg–Hg bond distances ranging from 3.26–3.44 Å. There are a spread of Hg–Sn bond distances ranging from 3.28–3.42 Å. In the second Hg site, Hg is bonded in a 12-coordinate geometry to eight equivalent Hg and four equivalent Sn atoms. There are two shorter (3.28 Å) and two longer (3.41 Å) Hg–Sn bond lengths. Sn is bonded to twelve Hg atoms to form a mixture of face and corner-sharing SnHg12 cuboctahedra.
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