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DOE OSTI2020

Materials Data on HgO by Materials Project

HgO crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are four inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two O2- atoms. Both Hg–O bond lengths are 2.06 Å. In the second Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two O2- atoms. Both Hg–O bond lengths are 2.06 Å. In the third Hg2+ site, Hg2+ is bonded in a distorted linear geometry to six O2- atoms. There are a spread of Hg–O bond distances ranging from 2.07–2.99 Å. In the fourth Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two O2- atoms. Both Hg–O bond lengths are 2.07 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to three Hg2+ atoms. In the second O2- site, O2- is bonded in a distorted water-like geometry to two Hg2+ atoms. In the third O2- site, O2- is bonded in a distorted water-like geometry to four Hg2+ atoms. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to three Hg2+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on AgHgSI by Materials Project

AgHgSI crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. Ag1+ is bonded in a 4-coordinate geometry to two equivalent S2- and two I1- atoms. Both Ag–S bond lengths are 2.57 Å. There are one shorter (2.84 Å) and one longer (3.18 Å) Ag–I bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 4-coordinate geometry to two equivalent S2- and four I1- atoms. Both Hg–S bond lengths are 2.43 Å. There are two shorter (3.33 Å) and two longer (3.85 Å) Hg–I bond lengths. In the second Hg2+ site, Hg2+ is bonded in a distorted linear geometry to two equivalent S2- and four equivalent I1- atoms. Both Hg–S bond lengths are 2.43 Å. All Hg–I bond lengths are 3.51 Å. S2- is bonded to two equivalent Ag1+ and two Hg2+ atoms to form corner-sharing SAg2Hg2 tetrahedra. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a 8-coordinate geometry to two equivalent Ag1+ and six Hg2+ atoms. In the second I1- site, I1- is bonded in a 6-coordinate geometry to two equivalent Ag1+ and two equivalent Hg2+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on AgHgSBr by Materials Project

AgHgSBr crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. Ag1+ is bonded to two equivalent S2- and two Br1- atoms to form distorted AgS2Br2 tetrahedra that share corners with two equivalent HgS2Br4 octahedra, corners with two equivalent AgS2Br2 tetrahedra, edges with two equivalent HgS2Br4 octahedra, and an edgeedge with one AgS2Br2 tetrahedra. The corner-sharing octahedral tilt angles are 61°. Both Ag–S bond lengths are 2.55 Å. There are one shorter (2.73 Å) and one longer (3.00 Å) Ag–Br bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to two equivalent S2- and two equivalent Br1- atoms. Both Hg–S bond lengths are 2.42 Å. Both Hg–Br bond lengths are 3.16 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent S2- and four equivalent Br1- atoms to form distorted HgS2Br4 octahedra that share corners with four equivalent HgS2Br4 octahedra, corners with four equivalent AgS2Br2 tetrahedra, edges with four equivalent HgS2Br4 octahedra, and edges with four equivalent AgS2Br2 tetrahedra. The corner-sharing octahedral tilt angles are 12°. Both Hg–S bond lengths are 2.41 Å. All Hg–Br bond lengths are 3.43 Å. S2- is bonded to two equivalent Ag1+ and two Hg2+ atoms to form corner-sharing SAg2Hg2 trigonal pyramids. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 4-coordinate geometry to two equivalent Ag1+ and two equivalent Hg2+ atoms. In the second Br1- site, Br1- is bonded in a 6-coordinate geometry to two equivalent Ag1+ and four equivalent Hg2+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on Hg2TeBr3 by Materials Project

Hg2TeBr3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to one Te1- and four Br1- atoms to form distorted edge-sharing HgTeBr4 trigonal bipyramids. The Hg–Te bond length is 2.76 Å. There are a spread of Hg–Br bond distances ranging from 2.63–3.42 Å. In the second Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to one Te1- and three Br1- atoms. The Hg–Te bond length is 2.75 Å. There are a spread of Hg–Br bond distances ranging from 2.74–2.82 Å. Te1- is bonded in a 8-coordinate geometry to two Hg2+, one Te1-, and five Br1- atoms. The Te–Te bond length is 2.84 Å. There are a spread of Te–Br bond distances ranging from 3.74–4.34 Å. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 2-coordinate geometry to three Hg2+ and one Te1- atom. In the second Br1- site, Br1- is bonded in a 1-coordinate geometry to two equivalent Hg2+ and two equivalent Te1- atoms. In the third Br1- site, Br1- is bonded in a distorted water-like geometry to two Hg2+ and two equivalent Te1- atoms.

36 MATERIALS SCIENCE↗
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Materials Data on SnHg6(As2Br3)2 by Materials Project

Hg6Sn(As2Br3)2 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to two As+2.50- and four Br1- atoms to form HgAs2Br4 octahedra that share corners with eight HgAs2Br4 octahedra, corners with two AsHg3As tetrahedra, and edges with four equivalent HgAs2Br4 octahedra. The corner-sharing octahedra tilt angles range from 11–84°. Both Hg–As bond lengths are 2.60 Å. There are a spread of Hg–Br bond distances ranging from 3.08–3.52 Å. In the second Hg2+ site, Hg2+ is bonded to two As+2.50- and four Br1- atoms to form distorted HgAs2Br4 octahedra that share corners with eight HgAs2Br4 octahedra, corners with two AsHg3As tetrahedra, and edges with four equivalent HgAs2Br4 octahedra. The corner-sharing octahedra tilt angles range from 11–84°. Both Hg–As bond lengths are 2.61 Å. There are a spread of Hg–Br bond distances ranging from 2.98–3.53 Å. Sn4+ is bonded in a 6-coordinate geometry to six Br1- atoms. There are three shorter (2.82 Å) and three longer (3.35 Å) Sn–Br bond lengths. There are four inequivalent As+2.50- sites. In the first As+2.50- site, As+2.50- is bonded to three equivalent Hg2+ and one As+2.50- atom to form AsHg3As tetrahedra that share corners with three equivalent HgAs2Br4 octahedra and corners with three equivalent AsHg3As tetrahedra. The corner-sharing octahedral tilt angles are 68°. The As–As bond length is 2.46 Å. In the second As+2.50- site, As+2.50- is bonded to three equivalent Hg2+ and one As+2.50- atom to form AsHg3As tetrahedra that share corners with three equivalent HgAs2Br4 octahedra and corners with three equivalent AsHg3As tetrahedra. The corner-sharing octahedral tilt angles are 71°. In the third As+2.50- site, As+2.50- is bonded to three equivalent Hg2+ and one As+2.50- atom to form AsHg3As tetrahedra that share corners with three equivalent HgAs2Br4 octahedra and corners with three equivalent AsHg3As tetrahedra. The corner-sharing octahedral tilt angles are 71°. The As–As bond length is 2.46 Å. In the fourth As+2.50- site, As+2.50- is bonded to three equivalent Hg2+ and one As+2.50- atom to form AsHg3As tetrahedra that share corners with three equivalent HgAs2Br4 octahedra and corners with three equivalent AsHg3As tetrahedra. The corner-sharing octahedral tilt angles are 73°. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 5-coordinate geometry to four Hg2+ and one Sn4+ atom. In the second Br1- site, Br1- is bonded in a 5-coordinate geometry to four Hg2+ and one Sn4+ atom.

36 MATERIALS SCIENCE↗
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Materials Data on KHgC2 by Materials Project

KC2Hg crystallizes in the orthorhombic Fddd space group. The structure is two-dimensional and consists of four Hg sheets oriented in the (0, 0, 1) direction and four KC2 sheets oriented in the (0, 0, 1) direction. In each Hg sheet, Hg1+ is bonded in a trigonal planar geometry to three equivalent Hg1+ atoms. There are one shorter (2.96 Å) and two longer (3.00 Å) Hg–Hg bond lengths. In each KC2 sheet, K1+ is bonded in a distorted square co-planar geometry to four equivalent C1- atoms. All K–C bond lengths are 3.21 Å. C1- is bonded in a distorted square co-planar geometry to two equivalent K1+ and two equivalent C1- atoms. There is one shorter (1.29 Å) and one longer (1.30 Å) C–C bond length.

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Materials Data on UHg3(TeCl3)2 by Materials Project

UHg3(TeCl3)2 is Krennerite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. U4+ is bonded to six Cl1- atoms to form UCl6 octahedra that share corners with twelve HgTe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 41–66°. There are two shorter (2.62 Å) and four longer (2.64 Å) U–Cl bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to two equivalent Te2- and four Cl1- atoms to form HgTe2Cl4 octahedra that share corners with four equivalent UCl6 octahedra and edges with four HgTe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 41–66°. Both Hg–Te bond lengths are 2.72 Å. There are a spread of Hg–Cl bond distances ranging from 3.25–3.42 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent Te2- and four Cl1- atoms to form HgTe2Cl4 octahedra that share corners with four equivalent UCl6 octahedra and edges with four equivalent HgTe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 46–49°. Both Hg–Te bond lengths are 2.73 Å. There are two shorter (3.18 Å) and two longer (3.23 Å) Hg–Cl bond lengths. Te2- is bonded in a 5-coordinate geometry to three Hg2+ and two Cl1- atoms. There are one shorter (3.85 Å) and one longer (3.92 Å) Te–Cl bond lengths. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 1-coordinate geometry to one U4+ and two Hg2+ atoms. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one U4+, two equivalent Hg2+, and one Te2- atom. In the third Cl1- site, Cl1- is bonded in a 1-coordinate geometry to one U4+, two Hg2+, and one Te2- atom.

36 MATERIALS SCIENCE↗
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Materials Data on CuHgSeBr by Materials Project

CuHgSeBr crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. Cu1+ is bonded to two equivalent Se2- and two Br1- atoms to form CuSe2Br2 tetrahedra that share corners with two equivalent HgSe2Br4 octahedra, corners with two equivalent CuSe2Br2 tetrahedra, edges with two equivalent HgSe2Br4 octahedra, and an edgeedge with one CuSe2Br2 tetrahedra. The corner-sharing octahedral tilt angles are 53°. Both Cu–Se bond lengths are 2.41 Å. There are one shorter (2.47 Å) and one longer (2.63 Å) Cu–Br bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a rectangular see-saw-like geometry to two equivalent Se2- and two equivalent Br1- atoms. Both Hg–Se bond lengths are 2.57 Å. Both Hg–Br bond lengths are 3.14 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent Se2- and four equivalent Br1- atoms to form distorted HgSe2Br4 octahedra that share corners with four equivalent HgSe2Br4 octahedra, corners with four equivalent CuSe2Br2 tetrahedra, edges with four equivalent HgSe2Br4 octahedra, and edges with four equivalent CuSe2Br2 tetrahedra. The corner-sharing octahedral tilt angles are 22°. Both Hg–Se bond lengths are 2.55 Å. All Hg–Br bond lengths are 3.43 Å. Se2- is bonded to two equivalent Cu1+ and two Hg2+ atoms to form corner-sharing SeCu2Hg2 trigonal pyramids. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 4-coordinate geometry to two equivalent Cu1+ and two equivalent Hg2+ atoms. In the second Br1- site, Br1- is bonded in a 6-coordinate geometry to two equivalent Cu1+ and four equivalent Hg2+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on ZrHg3(SeBr3)2 by Materials Project

ZrHg3(SeBr3)2 is Krennerite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Zr4+ is bonded to six Br1- atoms to form ZrBr6 octahedra that share corners with four equivalent HgSe2Br4 octahedra. The corner-sharing octahedra tilt angles range from 50–52°. There are a spread of Zr–Br bond distances ranging from 2.64–2.67 Å. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 6-coordinate geometry to two equivalent Se2- and four Br1- atoms. Both Hg–Se bond lengths are 2.56 Å. There are a spread of Hg–Br bond distances ranging from 3.28–3.58 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent Se2- and four Br1- atoms to form HgSe2Br4 octahedra that share corners with four equivalent ZrBr6 octahedra. The corner-sharing octahedra tilt angles range from 50–52°. Both Hg–Se bond lengths are 2.59 Å. There are two shorter (3.18 Å) and two longer (3.24 Å) Hg–Br bond lengths. Se2- is bonded in a distorted trigonal non-coplanar geometry to three Hg2+ atoms. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to one Zr4+ and two Hg2+ atoms. In the second Br1- site, Br1- is bonded in a distorted single-bond geometry to one Zr4+ and two equivalent Hg2+ atoms. In the third Br1- site, Br1- is bonded in a 1-coordinate geometry to one Zr4+ and two Hg2+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on ZrHg3(SeCl3)2 by Materials Project

ZrHg3(SeCl3)2 is Krennerite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Zr4+ is bonded to six Cl1- atoms to form ZrCl6 octahedra that share corners with twelve HgSe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 41–69°. There are four shorter (2.49 Å) and two longer (2.50 Å) Zr–Cl bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to two equivalent Se2- and four Cl1- atoms to form distorted HgSe2Cl4 octahedra that share corners with four equivalent ZrCl6 octahedra and edges with four HgSe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 41–69°. Both Hg–Se bond lengths are 2.55 Å. There are a spread of Hg–Cl bond distances ranging from 3.21–3.36 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent Se2- and four Cl1- atoms to form HgSe2Cl4 octahedra that share corners with four equivalent ZrCl6 octahedra and edges with four equivalent HgSe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 48–49°. Both Hg–Se bond lengths are 2.57 Å. There are two shorter (3.12 Å) and two longer (3.15 Å) Hg–Cl bond lengths. Se2- is bonded in a 3-coordinate geometry to three Hg2+ atoms. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 1-coordinate geometry to one Zr4+ and two Hg2+ atoms. In the second Cl1- site, Cl1- is bonded in a 1-coordinate geometry to one Zr4+ and two Hg2+ atoms. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Zr4+ and two equivalent Hg2+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on HfHg3(SeCl3)2 by Materials Project

HfHg3(SeCl3)2 is Krennerite-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Hf4+ is bonded to six Cl1- atoms to form HfCl6 octahedra that share corners with twelve HgSe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 41–69°. There are four shorter (2.46 Å) and two longer (2.47 Å) Hf–Cl bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to two equivalent Se2- and four Cl1- atoms to form distorted HgSe2Cl4 octahedra that share corners with four equivalent HfCl6 octahedra and edges with four HgSe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 41–69°. Both Hg–Se bond lengths are 2.55 Å. There are a spread of Hg–Cl bond distances ranging from 3.23–3.35 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent Se2- and four Cl1- atoms to form HgSe2Cl4 octahedra that share corners with four equivalent HfCl6 octahedra and edges with four equivalent HgSe2Cl4 octahedra. The corner-sharing octahedra tilt angles range from 47–49°. Both Hg–Se bond lengths are 2.57 Å. There are two shorter (3.13 Å) and two longer (3.16 Å) Hg–Cl bond lengths. Se2- is bonded in a 3-coordinate geometry to three Hg2+ atoms. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 1-coordinate geometry to one Hf4+ and two Hg2+ atoms. In the second Cl1- site, Cl1- is bonded in a 1-coordinate geometry to one Hf4+ and two Hg2+ atoms. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Hf4+ and two equivalent Hg2+ atoms.

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Materials Data on HgI2 by Materials Project

HgI2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional and consists of two HgI2 frameworks. there are four inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to four I1- atoms to form corner-sharing HgI4 tetrahedra. There are a spread of Hg–I bond distances ranging from 2.86–2.88 Å. In the second Hg2+ site, Hg2+ is bonded to four I1- atoms to form corner-sharing HgI4 tetrahedra. There are a spread of Hg–I bond distances ranging from 2.86–2.88 Å. In the third Hg2+ site, Hg2+ is bonded to four I1- atoms to form corner-sharing HgI4 tetrahedra. There are a spread of Hg–I bond distances ranging from 2.86–2.88 Å. In the fourth Hg2+ site, Hg2+ is bonded to four I1- atoms to form corner-sharing HgI4 tetrahedra. There are a spread of Hg–I bond distances ranging from 2.86–2.88 Å. There are eight inequivalent I1- sites. In the first I1- site, I1- is bonded in a water-like 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 water-like geometry to two Hg2+ atoms. In the fourth I1- site, I1- is bonded in a water-like geometry to two Hg2+ atoms. In the fifth I1- site, I1- is bonded in a water-like geometry to two Hg2+ atoms. In the sixth I1- site, I1- is bonded in a water-like geometry to two Hg2+ atoms. In the seventh I1- site, I1- is bonded in a water-like geometry to two Hg2+ atoms. In the eighth I1- site, I1- is bonded in a water-like geometry to two Hg2+ atoms.

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Materials Data on SnHg2(SBr)2 by Materials Project

Hg2Sn(SBr)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 2-coordinate geometry to two S2- and three Br1- atoms. Both Hg–S bond lengths are 2.40 Å. There are two shorter (3.38 Å) and one longer (3.43 Å) Hg–Br bond lengths. In the second Hg2+ site, Hg2+ is bonded in a 2-coordinate geometry to three S2- and two equivalent Br1- atoms. There are a spread of Hg–S bond distances ranging from 2.40–3.08 Å. There are one shorter (3.46 Å) and one longer (3.56 Å) Hg–Br bond lengths. Sn2+ is bonded to two S2- and three Br1- atoms to form distorted edge-sharing SnS2Br3 square pyramids. There are one shorter (3.01 Å) and one longer (3.08 Å) Sn–S bond lengths. There are a spread of Sn–Br bond distances ranging from 2.84–2.96 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to two Hg2+ and one Sn2+ atom. In the second S2- site, S2- is bonded in a 4-coordinate geometry to three Hg2+ and one Sn2+ atom. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to four Hg2+ and one Sn2+ atom. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to one Hg2+ and two equivalent Sn2+ atoms.

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Materials Data on HgC2(SN)2 by Materials Project

Hg(SCN)2 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one Hg(SCN)2 sheet oriented in the (0, 0, 1) direction. Hg2+ is bonded to four N3- and two S2- atoms to form edge-sharing HgS2N4 octahedra. There are three shorter (2.84 Å) and one longer (2.86 Å) Hg–N bond lengths. Both Hg–S bond lengths are 2.45 Å. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. In the second C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one C4+ atom. In the second N3- site, N3- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one C4+ atom. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a water-like geometry to one Hg2+ and one C4+ atom. In the second S2- site, S2- is bonded in a water-like geometry to one Hg2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
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Materials Data on CuHgSCl by Materials Project

CuHgSCl crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. Cu1+ is bonded to two equivalent S2- and two Cl1- atoms to form CuS2Cl2 tetrahedra that share corners with two equivalent HgS2Cl4 octahedra, corners with two equivalent CuS2Cl2 tetrahedra, edges with two equivalent HgS2Cl4 octahedra, and an edgeedge with one CuS2Cl2 tetrahedra. The corner-sharing octahedral tilt angles are 51°. Both Cu–S bond lengths are 2.26 Å. There are one shorter (2.38 Å) and one longer (2.54 Å) Cu–Cl bond lengths. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a rectangular see-saw-like geometry to two equivalent S2- and two equivalent Cl1- atoms. Both Hg–S bond lengths are 2.45 Å. Both Hg–Cl bond lengths are 3.02 Å. In the second Hg2+ site, Hg2+ is bonded to two equivalent S2- and four equivalent Cl1- atoms to form distorted HgS2Cl4 octahedra that share corners with four equivalent HgS2Cl4 octahedra, corners with four equivalent CuS2Cl2 tetrahedra, edges with four equivalent HgS2Cl4 octahedra, and edges with four equivalent CuS2Cl2 tetrahedra. The corner-sharing octahedral tilt angles are 18°. Both Hg–S bond lengths are 2.41 Å. All Hg–Cl bond lengths are 3.30 Å. S2- is bonded to two equivalent Cu1+ and two Hg2+ atoms to form corner-sharing SCu2Hg2 trigonal pyramids. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 2-coordinate geometry to two equivalent Cu1+ and two equivalent Hg2+ atoms. In the second Cl1- site, Cl1- is bonded in a 2-coordinate geometry to two equivalent Cu1+ and four equivalent Hg2+ atoms.

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DOE OSTI2020

Materials Data on Ga2HgTe4 by Materials Project

HgGa2Te4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to four Te2- atoms to form HgTe4 tetrahedra that share corners with eight GaTe4 tetrahedra. There are a spread of Hg–Te bond distances ranging from 2.84–2.92 Å. In the second Hg2+ site, Hg2+ is bonded to four Te2- atoms to form HgTe4 tetrahedra that share corners with eight GaTe4 tetrahedra. There are a spread of Hg–Te bond distances ranging from 2.76–3.04 Å. In the third Hg2+ site, Hg2+ is bonded to four Te2- atoms to form HgTe4 tetrahedra that share corners with eight GaTe4 tetrahedra. There are a spread of Hg–Te bond distances ranging from 2.85–2.90 Å. In the fourth Hg2+ site, Hg2+ is bonded to four Te2- atoms to form HgTe4 tetrahedra that share corners with eight GaTe4 tetrahedra. There are a spread of Hg–Te bond distances ranging from 2.76–2.98 Å. There are eight inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with four GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.66–2.71 Å. In the second Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with four GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.57–2.86 Å. In the third Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with five GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.68–2.76 Å. In the fourth Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with four GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.69–2.73 Å. In the fifth Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with five GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.65–2.74 Å. In the sixth Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with four GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.57–2.80 Å. In the seventh Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with five GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.65–2.73 Å. In the eighth Ga3+ site, Ga3+ is bonded to four Te2- atoms to form GaTe4 tetrahedra that share corners with four HgTe4 tetrahedra and corners with five GaTe4 tetrahedra. There are a spread of Ga–Te bond distances ranging from 2.68–2.77 Å. There are sixteen inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a tetrahedral geometry to one Hg2+ and three Ga3+ atoms. In the second Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the third Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the fourth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the fifth Te2- site, Te2- is bonded in a 3-coordinate geometry to one Hg2+ and two Ga3+ atoms. In the sixth Te2- site, Te2- is bonded in a distorted water-like geometry to one Hg2+ and one Ga3+ atom. In the seventh Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the eighth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the ninth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the tenth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the eleventh Te2- site, Te2- is bonded in a distorted water-like geometry to one Hg2+ and one Ga3+ atom. In the twelfth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the thirteenth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the fourteenth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the fifteenth Te2- site, Te2- is bonded in a distorted trigonal non-coplanar geometry to one Hg2+ and two Ga3+ atoms. In the sixteenth Te2- site, Te2- is bonded in a tetrahedral geometry to one Hg2+ and three Ga3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdHg3C6S6(N3Cl)2 by Materials Project

Hg3CdCl2(SCN)6 crystallizes in the trigonal R3c space group. The structure is three-dimensional. there are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a 4-coordinate geometry to two S2- and two equivalent Cl1- atoms. There are one shorter (2.48 Å) and one longer (2.51 Å) Hg–S bond lengths. There are one shorter (2.73 Å) and one longer (2.85 Å) Hg–Cl bond lengths. In the second Hg2+ site, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to two S2- and two Cl1- atoms. There are one shorter (2.48 Å) and one longer (2.50 Å) Hg–S bond lengths. There are one shorter (2.79 Å) and one longer (2.84 Å) Hg–Cl bond lengths. There are two inequivalent Cd2+ sites. In the first Cd2+ site, Cd2+ is bonded in an octahedral geometry to six N3- atoms. There are three shorter (2.35 Å) and three longer (2.37 Å) Cd–N bond lengths. In the second Cd2+ site, Cd2+ is bonded in an octahedral geometry to six N3- atoms. There are three shorter (2.35 Å) and three longer (2.38 Å) Cd–N bond lengths. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a linear geometry to one N3- and one S2- atom. The C–N bond length is 1.17 Å. The C–S bond length is 1.66 Å. In the second C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.17 Å. The C–S bond length is 1.66 Å. In the third C4+ site, C4+ is bonded in a linear geometry to one N3- and one S2- atom. The C–N bond length is 1.17 Å. The C–S bond length is 1.66 Å. In the fourth C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a linear geometry to one Cd2+ and one C4+ atom. In the second N3- site, N3- is bonded in a linear geometry to one Cd2+ and one C4+ atom. In the third N3- site, N3- is bonded in a linear geometry to one Cd2+ and one C4+ atom. In the fourth N3- site, N3- is bonded in a linear geometry to one Cd2+ and one C4+ atom. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted L-shaped geometry to one Hg2+ and one C4+ atom. In the second S2- site, S2- is bonded in a water-like geometry to one Hg2+ and one C4+ atom. In the third S2- site, S2- is bonded in a distorted water-like geometry to one Hg2+ and one C4+ atom. In the fourth S2- site, S2- is bonded in a water-like geometry to one Hg2+ and one C4+ atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a trigonal non-coplanar geometry to three equivalent Hg2+ atoms. In the second Cl1- site, Cl1- is bonded in a distorted trigonal planar geometry to three Hg2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y2Hg2O5 by Materials Project

Y2Hg2O5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded to six O2- atoms to form distorted edge-sharing YO6 pentagonal pyramids. There are a spread of Y–O bond distances ranging from 2.22–2.56 Å. In the second Y3+ site, Y3+ is bonded to six O2- atoms to form distorted edge-sharing YO6 octahedra. There are a spread of Y–O bond distances ranging from 2.15–2.51 Å. In the third Y3+ site, Y3+ is bonded to six O2- atoms to form distorted edge-sharing YO6 pentagonal pyramids. There are a spread of Y–O bond distances ranging from 2.22–2.56 Å. In the fourth Y3+ site, Y3+ is bonded to six O2- atoms to form distorted edge-sharing YO6 octahedra. There are a spread of Y–O bond distances ranging from 2.15–2.51 Å. There are four inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of Hg–O bond distances ranging from 2.06–2.50 Å. In the second Hg2+ site, Hg2+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Hg–O bond distances ranging from 2.05–2.61 Å. In the third Hg2+ site, Hg2+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Hg–O bond distances ranging from 2.05–2.59 Å. In the fourth Hg2+ site, Hg2+ is bonded in a distorted T-shaped geometry to three O2- atoms. There are a spread of Hg–O bond distances ranging from 2.06–2.50 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Y3+ and one Hg2+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Y3+ and one Hg2+ atom. In the third O2- site, O2- is bonded to three Y3+ and one Hg2+ atom to form a mixture of distorted edge and corner-sharing OY3Hg trigonal pyramids. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Y3+ and two Hg2+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Y3+ and two Hg2+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to three Y3+ and one Hg2+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Y3+ and one Hg2+ atom. In the eighth O2- site, O2- is bonded to three Y3+ and one Hg2+ atom to form a mixture of edge and corner-sharing OY3Hg trigonal pyramids. In the ninth O2- site, O2- is bonded to three Y3+ and one Hg2+ atom to form a mixture of distorted edge and corner-sharing OY3Hg trigonal pyramids. In the tenth O2- site, O2- is bonded to three Y3+ and one Hg2+ atom to form a mixture of edge and corner-sharing OY3Hg trigonal pyramids.

36 MATERIALS SCIENCE↗