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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Hg5(SbI3)2 by Materials Project

Hg5(SbI3)2 crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. there are five inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to one Sb2- and three I1- atoms. The Hg–Sb bond length is 2.75 Å. There are a spread of Hg–I bond distances ranging from 2.78–3.28 Å. In the second Hg2+ site, Hg2+ is bonded in a 1-coordinate geometry to one Sb2- and two I1- atoms. The Hg–Sb bond length is 2.73 Å. There are one shorter (2.73 Å) and one longer (3.41 Å) Hg–I bond lengths. In the third Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to one Sb2- and three I1- atoms. The Hg–Sb bond length is 2.74 Å. There are a spread of Hg–I bond distances ranging from 2.84–3.55 Å. In the fourth Hg2+ site, Hg2+ is bonded in a rectangular see-saw-like geometry to one Sb2- and three I1- atoms. The Hg–Sb bond length is 2.75 Å. There are a spread of Hg–I bond distances ranging from 2.98–3.14 Å. In the fifth Hg2+ site, Hg2+ is bonded in a 5-coordinate geometry to one Sb2- and four I1- atoms. The Hg–Sb bond length is 2.78 Å. There are a spread of Hg–I bond distances ranging from 2.83–3.87 Å. There are two inequivalent Sb2- sites. In the first Sb2- site, Sb2- is bonded in a 3-coordinate geometry to two Hg2+ and one Sb2- atom. The Sb–Sb bond length is 2.89 Å. In the second Sb2- site, Sb2- is bonded in a tetrahedral geometry to three Hg2+ and one Sb2- atom. There are six inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted L-shaped geometry to two Hg2+ atoms. In the second I1- site, I1- is bonded in a water-like geometry to two Hg2+ atoms. In the third I1- site, I1- is bonded in a distorted L-shaped geometry to two Hg2+ atoms. In the fourth I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to three Hg2+ atoms. In the fifth I1- site, I1- is bonded in a 2-coordinate geometry to three Hg2+ atoms. In the sixth I1- site, I1- is bonded in a 3-coordinate geometry to three Hg2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hg4Sb2I3 by Materials Project

Hg4Sb2I3 crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to two Sb+2.50- and two equivalent I1- atoms. There are one shorter (2.77 Å) and one longer (2.78 Å) Hg–Sb bond lengths. There are one shorter (3.10 Å) and one longer (3.40 Å) Hg–I bond lengths. In the second Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to one Sb+2.50- and three equivalent I1- atoms. The Hg–Sb bond length is 2.75 Å. All Hg–I bond lengths are 3.03 Å. There are two inequivalent Sb+2.50- sites. In the first Sb+2.50- site, Sb+2.50- is bonded to four Hg2+ atoms to form corner-sharing SbHg4 trigonal pyramids. In the second Sb+2.50- site, Sb+2.50- is bonded to three equivalent Hg2+ and one Sb+2.50- atom to form corner-sharing SbHg3Sb tetrahedra. The Sb–Sb bond length is 2.84 Å. I1- is bonded in a trigonal non-coplanar geometry to three Hg2+ atoms.

36 MATERIALS SCIENCE↗