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DOE OSTI2020

Materials Data on MnH6(NCl)2 by Materials Project

MnH6(NCl)2 crystallizes in the monoclinic C2 space group. The structure is one-dimensional and consists of two MnH6(NCl)2 ribbons oriented in the (0, 0, 1) direction. Mn2+ is bonded to two equivalent N3- and four Cl1- atoms to form edge-sharing MnN2Cl4 octahedra. Both Mn–N bond lengths are 2.21 Å. There are two shorter (2.61 Å) and two longer (2.62 Å) Mn–Cl bond lengths. N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Mn2+ atoms. In the second Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Mn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaHf8(NCl)8 by Materials Project

NaHf8(NCl)8 crystallizes in the monoclinic P2/m space group. The structure is two-dimensional and consists of one NaHf8(NCl)8 sheet oriented in the (0, 0, 1) direction. Na is bonded to six Cl atoms to form edge-sharing NaCl6 octahedra. There are four shorter (2.75 Å) and two longer (2.77 Å) Na–Cl bond lengths. There are four inequivalent Hf sites. In the first Hf site, Hf is bonded in a 7-coordinate geometry to four N and three Cl atoms. There are three shorter (2.13 Å) and one longer (2.19 Å) Hf–N bond lengths. There are one shorter (2.75 Å) and two longer (2.77 Å) Hf–Cl bond lengths. In the second Hf site, Hf is bonded in a 7-coordinate geometry to four N and three Cl atoms. There are three shorter (2.13 Å) and one longer (2.19 Å) Hf–N bond lengths. There are one shorter (2.75 Å) and two longer (2.78 Å) Hf–Cl bond lengths. In the third Hf site, Hf is bonded in a 4-coordinate geometry to four N and three Cl atoms. There are one shorter (2.10 Å) and three longer (2.11 Å) Hf–N bond lengths. There are one shorter (2.85 Å) and two longer (2.92 Å) Hf–Cl bond lengths. In the fourth Hf site, Hf is bonded in a 4-coordinate geometry to four N and three Cl atoms. There are one shorter (2.11 Å) and three longer (2.12 Å) Hf–N bond lengths. There are two shorter (2.87 Å) and one longer (2.88 Å) Hf–Cl bond lengths. There are four inequivalent N sites. In the first N site, N is bonded to four Hf atoms to form NHf4 trigonal pyramids that share corners with three equivalent ClNa2Hf3 square pyramids, corners with six NHf4 trigonal pyramids, an edgeedge with one ClNa2Hf3 square pyramid, and edges with three NHf4 tetrahedra. In the second N site, N is bonded to four Hf atoms to form NHf4 trigonal pyramids that share corners with six NHf4 trigonal pyramids, edges with two equivalent ClNa2Hf3 square pyramids, and edges with three NHf4 tetrahedra. In the third N site, N is bonded to four Hf atoms to form NHf4 tetrahedra that share corners with two equivalent ClNa2Hf3 square pyramids, corners with six NHf4 tetrahedra, and edges with three NHf4 trigonal pyramids. In the fourth N site, N is bonded to four Hf atoms to form NHf4 tetrahedra that share a cornercorner with one ClNa2Hf3 square pyramid, corners with six NHf4 tetrahedra, and edges with three NHf4 trigonal pyramids. There are four inequivalent Cl sites. In the first Cl site, Cl is bonded to two equivalent Na and three Hf atoms to form distorted ClNa2Hf3 square pyramids that share corners with two equivalent ClNa2Hf3 square pyramids, corners with three NHf4 tetrahedra, corners with three equivalent NHf4 trigonal pyramids, edges with three equivalent ClNa2Hf3 square pyramids, and edges with three NHf4 trigonal pyramids. In the second Cl site, Cl is bonded in a distorted see-saw-like geometry to one Na and three Hf atoms. In the third Cl site, Cl is bonded in a 3-coordinate geometry to three Hf atoms. In the fourth Cl site, Cl is bonded in a 3-coordinate geometry to three Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ir(NCl)4 by Materials Project

Ir(NCl)4 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Ir(NCl)4 cluster. Ir4+ is bonded in a distorted trigonal bipyramidal geometry to three N and two Cl1- atoms. There are a spread of Ir–N bond distances ranging from 1.73–2.01 Å. There are one shorter (2.33 Å) and one longer (2.47 Å) Ir–Cl bond lengths. There are four inequivalent N sites. In the first N site, N is bonded in a distorted bent 120 degrees geometry to one Ir4+ and one Cl1- atom. The N–Cl bond length is 1.57 Å. In the second N site, N is bonded in a water-like geometry to two Cl1- atoms. There is one shorter (1.60 Å) and one longer (2.05 Å) N–Cl bond length. In the third N site, N is bonded in a single-bond geometry to one Ir4+ atom. In the fourth N site, N is bonded in a single-bond geometry to one Ir4+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Ir4+ atom. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Ir4+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one N atom. In the fourth Cl1- site, Cl1- is bonded in a water-like geometry to two N atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pd(NCl)2 by Materials Project

Pd(NCl)2 crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of one Pd(NCl)2 ribbon oriented in the (1, 0, 0) direction. Pd2+ is bonded in a distorted rectangular see-saw-like geometry to four N atoms. There are three shorter (2.01 Å) and one longer (2.02 Å) Pd–N bond lengths. There are two inequivalent N sites. In the first N site, N is bonded in a trigonal planar geometry to two equivalent Pd2+ and one Cl1- atom. The N–Cl bond length is 1.66 Å. In the second N site, N is bonded in a trigonal planar geometry to two equivalent Pd2+ and one Cl1- atom. The N–Cl bond length is 1.66 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one N atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one N atom.

36 MATERIALS SCIENCE↗
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Materials Data on Pt(NCl)2 by Materials Project

Pt(NCl)2 crystallizes in the tetragonal P4/m space group. The structure is one-dimensional and consists of one Pt(NCl)2 ribbon oriented in the (0, 0, 1) direction. there are two inequivalent Pt2+ sites. In the first Pt2+ site, Pt2+ is bonded in a square co-planar geometry to two equivalent Pt2+ and four equivalent Cl1- atoms. Both Pt–Pt bond lengths are 2.58 Å. All Pt–Cl bond lengths are 2.47 Å. In the second Pt2+ site, Pt2+ is bonded in a linear geometry to two equivalent Pt2+ atoms. N is bonded in a single-bond geometry to one Cl1- atom. The N–Cl bond length is 1.58 Å. Cl1- is bonded in a bent 120 degrees geometry to one Pt2+ and one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgH8C2S2(NCl)4 by Materials Project

HgC2H8S2(NCl)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four HgC2H8S2(NCl)4 clusters. Hg2+ is bonded in a 4-coordinate geometry to four Cl1- atoms. There are a spread of Hg–Cl bond distances ranging from 2.43–2.82 Å. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted trigonal planar geometry to two N+2.50- and one S2- atom. Both C–N bond lengths are 1.32 Å. The C–S bond length is 1.79 Å. In the second C4+ site, C4+ is bonded in a distorted trigonal planar geometry to two N+2.50- and one S2- atom. Both C–N bond lengths are 1.32 Å. The C–S bond length is 1.77 Å. There are four inequivalent N+2.50- sites. In the first N+2.50- site, N+2.50- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. In the second N+2.50- site, N+2.50- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. In the third N+2.50- site, N+2.50- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.03 Å. In the fourth N+2.50- site, N+2.50- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. There is one shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. There are eight inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N+2.50- atom. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to one C4+, one S2-, and one Cl1- atom. The S–S bond length is 2.03 Å. The S–Cl bond length is 3.35 Å. In the second S2- site, S2- is bonded in a 2-coordinate geometry to one C4+ and one S2- atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Hg2+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Hg2+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Hg2+ atom. In the fourth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Hg2+ and one S2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdH6(NCl)2 by Materials Project

CdH6(NCl)2 crystallizes in the monoclinic C2 space group. The structure is one-dimensional and consists of two CdH6(NCl)2 ribbons oriented in the (0, 0, 1) direction. Cd2+ is bonded to two equivalent N3- and four Cl1- atoms to form edge-sharing CdN2Cl4 octahedra. Both Cd–N bond lengths are 2.28 Å. There are two shorter (2.76 Å) and two longer (2.78 Å) Cd–Cl bond lengths. N3- is bonded in a distorted trigonal non-coplanar geometry to one Cd2+ and three H1+ atoms. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms. In the second Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pd(NCl)2 by Materials Project

Pd(NCl)2 crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of one Pd(NCl)2 ribbon oriented in the (0, 1, 0) direction. Pd2+ is bonded in a 3-coordinate geometry to two N and one Cl1- atom. There is one shorter (1.83 Å) and one longer (1.89 Å) Pd–N bond length. The Pd–Cl bond length is 2.56 Å. There are two inequivalent N sites. In the first N site, N is bonded in a bent 150 degrees geometry to one Pd2+ and one Cl1- atom. The N–Cl bond length is 1.63 Å. In the second N site, N is bonded in a distorted bent 120 degrees geometry to one Pd2+ and one Cl1- atom. The N–Cl bond length is 1.65 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted bent 120 degrees geometry to one Pd2+ and one N atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Fe(NCl)2 by Materials Project

Fe(NCl)2 crystallizes in the orthorhombic Cmmm space group. The structure is one-dimensional and consists of two Fe(NCl)2 ribbons oriented in the (0, 0, 1) direction. Fe2+ is bonded to two equivalent N and four equivalent Cl1- atoms to form edge-sharing FeN2Cl4 octahedra. Both Fe–N bond lengths are 1.70 Å. All Fe–Cl bond lengths are 2.31 Å. N is bonded in a single-bond geometry to one Fe2+ atom. Cl1- is bonded in an L-shaped geometry to two equivalent Fe2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pt(NCl)2 by Materials Project

Pt(NCl)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two Pt(NCl)2 clusters. Pt2+ is bonded in a square co-planar geometry to two equivalent N and two equivalent Cl1- atoms. Both Pt–N bond lengths are 1.81 Å. Both Pt–Cl bond lengths are 2.35 Å. N is bonded in a single-bond geometry to one Pt2+ atom. Cl1- is bonded in a single-bond geometry to one Pt2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnH24Au2C12S8(NCl)4 by Materials Project

Au2ZnC12H24S8(NCl)4 crystallizes in the monoclinic C2/c space group. The structure is one-dimensional and consists of two Au2ZnC12H24S8(NCl)4 ribbons oriented in the (1, 0, 1) direction. Au1- is bonded in a distorted square co-planar geometry to four S2- atoms. There are a spread of Au–S bond distances ranging from 2.37–2.39 Å. Zn2+ is bonded in a tetrahedral geometry to four Cl1- atoms. There are two shorter (2.30 Å) and two longer (2.33 Å) Zn–Cl bond lengths. There are six inequivalent C+0.67+ sites. In the first C+0.67+ site, C+0.67+ is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the second C+0.67+ site, C+0.67+ is bonded in a distorted single-bond geometry to one N3- and two S2- atoms. The C–N bond length is 1.33 Å. Both C–S bond lengths are 1.73 Å. In the third C+0.67+ site, C+0.67+ is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the fourth C+0.67+ site, C+0.67+ is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. All C–H bond lengths are 1.10 Å. In the fifth C+0.67+ site, C+0.67+ is bonded in a distorted single-bond geometry to one N3- and two S2- atoms. The C–N bond length is 1.32 Å. Both C–S bond lengths are 1.73 Å. In the sixth C+0.67+ site, C+0.67+ is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. All C–H bond lengths are 1.10 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to three C+0.67+ atoms. In the second N3- site, N3- is bonded in a trigonal planar geometry to three C+0.67+ atoms. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.67+ atom. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to one Au1-, one C+0.67+, and one Cl1- atom. The S–Cl bond length is 3.65 Å. In the second S2- site, S2- is bonded in a distorted L-shaped geometry to one Au1- and one C+0.67+ atom. In the third S2- site, S2- is bonded in a distorted L-shaped geometry to one Au1- and one C+0.67+ atom. In the fourth S2- site, S2- is bonded in a 3-coordinate geometry to one Au1-, one C+0.67+, and one Cl1- atom. The S–Cl bond length is 3.39 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Zn2+ and one S2- atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Zn2+ and one S2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdH8C4(NCl)2 by Materials Project

CdC4H8(NCl)2 crystallizes in the monoclinic C2/c space group. The structure is one-dimensional and consists of two CdC4H8(NCl)2 ribbons oriented in the (0, 0, 1) direction. Cd2+ is bonded to two equivalent N3- and four equivalent Cl1- atoms to form edge-sharing CdN2Cl4 octahedra. Both Cd–N bond lengths are 2.46 Å. There are two shorter (2.64 Å) and two longer (2.69 Å) Cd–Cl bond lengths. There are two inequivalent C+0.50- sites. In the first C+0.50- site, C+0.50- is bonded in a distorted trigonal non-coplanar geometry to one N3- and two H1+ atoms. The C–N bond length is 1.43 Å. There is one shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. In the second C+0.50- site, C+0.50- is bonded in a distorted trigonal non-coplanar geometry to one N3- and two H1+ atoms. The C–N bond length is 1.44 Å. There is one shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. N3- is bonded in a distorted trigonal planar geometry to one Cd2+ and two C+0.50- atoms. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.50- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.50- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+0.50- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.50- atom. Cl1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pt(NCl)2 by Materials Project

Pt(NCl)2 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two Pt(NCl)2 ribbons oriented in the (0, 1, 0) direction. Pt2+ is bonded in a distorted square co-planar geometry to two equivalent N and two equivalent Cl1- atoms. Both Pt–N bond lengths are 1.88 Å. Both Pt–Cl bond lengths are 2.43 Å. N is bonded in a 2-coordinate geometry to one Pt2+ and one Cl1- atom. The N–Cl bond length is 1.66 Å. Cl1- is bonded in a distorted bent 120 degrees geometry to one Pt2+ and one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pt(NCl)4 by Materials Project

Pt(NCl)4 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two Pt(NCl)4 sheets oriented in the (0, 0, 1) direction. Pt2+ is bonded in an octahedral geometry to four equivalent N+0.50+ and two equivalent Cl1- atoms. All Pt–N bond lengths are 1.96 Å. Both Pt–Cl bond lengths are 2.40 Å. N+0.50+ is bonded in a distorted T-shaped geometry to one Pt2+ and two equivalent Cl1- atoms. Both N–Cl bond lengths are 2.13 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Pt2+ atom. In the second Cl1- site, Cl1- is bonded in a square co-planar geometry to four equivalent N+0.50+ atoms.

36 MATERIALS SCIENCE↗
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Materials Data on CrPt(NCl)5 by Materials Project

CrPt(NCl)5 is beta Np structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four CrPt(NCl)5 clusters. Cr6+ is bonded in a 2-coordinate geometry to four N+1.40- and one Cl1- atom. There is two shorter (1.61 Å) and two longer (2.29 Å) Cr–N bond length. The Cr–Cl bond length is 2.16 Å. Pt6+ is bonded in a rectangular see-saw-like geometry to four Cl1- atoms. There are two shorter (2.26 Å) and two longer (2.27 Å) Pt–Cl bond lengths. There are three inequivalent N+1.40- sites. In the first N+1.40- site, N+1.40- is bonded in a single-bond geometry to one Cr6+ atom. In the second N+1.40- site, N+1.40- is bonded in a 2-coordinate geometry to one Cr6+ and one N+1.40- atom. The N–N bond length is 1.30 Å. In the third N+1.40- site, N+1.40- is bonded in a 3-coordinate geometry to two equivalent N+1.40- and one Cl1- atom. The N–Cl bond length is 3.15 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Pt6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Pt6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Cr6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Pt6+ and one N+1.40- atom.

36 MATERIALS SCIENCE↗
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Materials Data on Sr2C(NCl)2 by Materials Project

Sr2C(NCl)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Sr2+ is bonded in a 7-coordinate geometry to three equivalent N3- and four equivalent Cl1- atoms. There are two shorter (2.63 Å) and one longer (2.65 Å) Sr–N bond lengths. There are two shorter (3.04 Å) and two longer (3.05 Å) Sr–Cl bond lengths. C4+ is bonded in a linear geometry to two equivalent N3- atoms. Both C–N bond lengths are 1.24 Å. N3- is bonded to three equivalent Sr2+ and one C4+ atom to form distorted NSr3C tetrahedra that share corners with three equivalent NSr3C tetrahedra, corners with ten equivalent ClSr4 tetrahedra, an edgeedge with one ClSr4 tetrahedra, and edges with two equivalent NSr3C tetrahedra. Cl1- is bonded to four equivalent Sr2+ atoms to form ClSr4 tetrahedra that share corners with six equivalent ClSr4 tetrahedra, corners with ten equivalent NSr3C tetrahedra, an edgeedge with one NSr3C tetrahedra, and edges with three equivalent ClSr4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hg2C(NCl)2 by Materials Project

Hg2C(NCl)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to six Cl1- atoms to form distorted HgCl6 octahedra that share corners with four equivalent HgCl6 octahedra and edges with four equivalent HgN2Cl4 octahedra. The corner-sharing octahedral tilt angles are 7°. There are a spread of Hg–Cl bond distances ranging from 2.38–3.17 Å. In the second Hg2+ site, Hg2+ is bonded in a 2-coordinate geometry to two N3- and one Cl1- atom. There are one shorter (2.09 Å) and one longer (2.13 Å) Hg–N bond lengths. The Hg–Cl bond length is 2.99 Å. In the third Hg2+ site, Hg2+ is bonded to two equivalent N3- and four equivalent Cl1- atoms to form distorted HgN2Cl4 octahedra that share corners with four equivalent HgN2Cl4 octahedra and edges with four equivalent HgCl6 octahedra. The corner-sharing octahedral tilt angles are 6°. Both Hg–N bond lengths are 2.12 Å. There are two shorter (3.01 Å) and two longer (3.22 Å) Hg–Cl bond lengths. C4+ is bonded in a linear geometry to two N3- atoms. There is one shorter (1.21 Å) and one longer (1.26 Å) C–N bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to two Hg2+ and one C4+ atom. In the second N3- site, N3- is bonded in a bent 120 degrees geometry to one Hg2+ and one C4+ atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded to five Hg2+ atoms to form a mixture of distorted corner and edge-sharing ClHg5 trigonal bipyramids. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Hg2+ atom.

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Materials Data on Eu2C(NCl)2 by Materials Project

Eu2C(NCl)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Eu2+ is bonded in a 7-coordinate geometry to three equivalent N3- and four equivalent Cl1- atoms. There are two shorter (2.59 Å) and one longer (2.61 Å) Eu–N bond lengths. There are two shorter (3.00 Å) and two longer (3.02 Å) Eu–Cl bond lengths. C4+ is bonded in a linear geometry to two equivalent N3- atoms. Both C–N bond lengths are 1.24 Å. N3- is bonded to three equivalent Eu2+ and one C4+ atom to form distorted NEu3C tetrahedra that share corners with three equivalent NEu3C tetrahedra, corners with ten equivalent ClEu4 tetrahedra, an edgeedge with one ClEu4 tetrahedra, and edges with two equivalent NEu3C tetrahedra. Cl1- is bonded to four equivalent Eu2+ atoms to form ClEu4 tetrahedra that share corners with six equivalent ClEu4 tetrahedra, corners with ten equivalent NEu3C tetrahedra, an edgeedge with one NEu3C tetrahedra, and edges with three equivalent ClEu4 tetrahedra.

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