Materials Data on Sr(SnHg)2 by Materials Project
Sr(HgSn)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Sr is bonded in a 12-coordinate geometry to seven Hg and seven Sn atoms. There are a spread of Sr–Hg bond distances ranging from 3.50–3.92 Å. There are a spread of Sr–Sn bond distances ranging from 3.58–3.79 Å. There are two inequivalent Hg sites. In the first Hg site, Hg is bonded in a 8-coordinate geometry to four equivalent Sr and four Sn atoms. There are a spread of Hg–Sn bond distances ranging from 2.92–3.21 Å. In the second Hg site, Hg is bonded in a 7-coordinate geometry to three equivalent Sr and four Sn atoms. There are a spread of Hg–Sn bond distances ranging from 2.91–3.26 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to three equivalent Sr, four Hg, and one Sn atom. The Sn–Sn bond length is 2.92 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to four equivalent Sr, four Hg, and one Sn atom. The Sn–Sn bond length is 2.95 Å.