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DOE OSTI2020

Materials Data on H7NO6 by Materials Project

NH9O7(NH3O4)2NH11O8H2O crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of two nitric acid, monohydrate molecules; one water molecule; one NH11O8 cluster; and one NH9O7 cluster. In the NH11O8 cluster, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.25–1.29 Å. There are eleven inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.65 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the seventh H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.09 Å) and one longer (1.39 Å) H–O bond length. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the ninth H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.61 Å) H–O bond length. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.00 Å) and one longer (1.75 Å) H–O bond length. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one N5+ and two H1+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the fourth O2- site, O2- is bonded in a trigonal non-coplanar geometry to three H1+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three H1+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three H1+ atoms. In the seventh O2- site, O2- is bonded in a trigonal non-coplanar geometry to three H1+ atoms. In the eighth O2- site, O2- is bonded in a water-like geometry to two H1+ atoms. In the NH9O7 cluster, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.26 Å) and one longer (1.29 Å) N–O bond length. There are nine inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.67 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.55 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the seventh H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.57 Å) H–O bond length. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the ninth H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.11 Å) and one longer (1.35 Å) H–O bond length. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one N5+ and one H1+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the fourth O2- site, O2- is bonded in a trigonal non-coplanar geometry to three H1+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to three H1+ atoms. In the sixth O2- site, O2- is bonded in a trigonal non-coplanar geometry to three H1+ atoms. In the seventh O2- site, O2- is bonded in a trigonal non-coplanar geometry to three H1+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Ni(XeF8)2 by Materials Project

XeF5XeNiF11 crystallizes in the orthorhombic Pbca space group. The structure is zero-dimensional and consists of eight XeF5 clusters and four XeNiF11 clusters. In each XeF5 cluster, Xe is bonded in a 5-coordinate geometry to five F atoms. There are a spread of Xe–F bond distances ranging from 1.98–2.00 Å. There are five inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a single-bond geometry to one Xe atom. In the third F site, F is bonded in a single-bond geometry to one Xe atom. In the fourth F site, F is bonded in a single-bond geometry to one Xe atom. In the fifth F site, F is bonded in a single-bond geometry to one Xe atom. In each XeNiF11 cluster, Xe is bonded in a 5-coordinate geometry to eight F atoms. There are a spread of Xe–F bond distances ranging from 1.97–2.59 Å. Ni is bonded in an octahedral geometry to six F atoms. There are a spread of Ni–F bond distances ranging from 1.80–1.82 Å. There are eleven inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a single-bond geometry to one Xe atom. In the third F site, F is bonded in a single-bond geometry to one Ni atom. In the fourth F site, F is bonded in a single-bond geometry to one Ni atom. In the fifth F site, F is bonded in a single-bond geometry to one Xe and one Ni atom. In the sixth F site, F is bonded in a single-bond geometry to one Xe atom. In the seventh F site, F is bonded in a single-bond geometry to one Xe atom. In the eighth F site, F is bonded in a single-bond geometry to one Xe atom. In the ninth F site, F is bonded in a single-bond geometry to one Xe and one Ni atom. In the tenth F site, F is bonded in a distorted single-bond geometry to one Xe and one Ni atom. In the eleventh F site, F is bonded in a single-bond geometry to one Ni atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Y2N6O25 by Materials Project

Y(N2O7)2YN2O11 crystallizes in the orthorhombic C222_1 space group. The structure is zero-dimensional and consists of four Y(N2O7)2 clusters and four YN2O11 clusters. In each Y(N2O7)2 cluster, Y is bonded in a 10-coordinate geometry to ten O atoms. There are a spread of Y–O bond distances ranging from 2.35–2.57 Å. There are three inequivalent N sites. In the first N site, N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.23 Å) and two longer (1.28 Å) N–O bond length. In the second N site, N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.21 Å) and two longer (1.30 Å) N–O bond length. In the third N site, N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.24–1.28 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a distorted L-shaped geometry to one Y and one N atom. In the second O site, O is bonded in a single-bond geometry to one N atom. In the third O site, O is bonded in a single-bond geometry to one Y atom. In the fourth O site, O is bonded in a distorted single-bond geometry to one Y and one N atom. In the fifth O site, O is bonded in a single-bond geometry to one N atom. In the sixth O site, O is bonded in a distorted single-bond geometry to one Y and one N atom. In the seventh O site, O is bonded in a distorted water-like geometry to one Y and one N atom. In the eighth O site, O is bonded in a single-bond geometry to one N atom. In each YN2O11 cluster, Y is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Y–O bond distances ranging from 2.28–2.54 Å. N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.22–1.29 Å. There are six inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one N atom. In the second O site, O is bonded in a single-bond geometry to one Y atom. In the third O site, O is bonded in a single-bond geometry to one Y atom. In the fourth O site, O is bonded in a single-bond geometry to one Y atom. In the fifth O site, O is bonded in a distorted L-shaped geometry to one Y and one N atom. In the sixth O site, O is bonded in a distorted water-like geometry to one Y and one N atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on BiBr7(N3F2)2 by Materials Project

BiBr6(N3F)2BrF2 is Halite, Rock Salt structured and crystallizes in the cubic Pa-3 space group. The structure is zero-dimensional and consists of four BiBr6(N3F)2 clusters and four BrF2 clusters. In each BiBr6(N3F)2 cluster, Bi5+ is bonded in an octahedral geometry to six equivalent Br1- atoms. All Bi–Br bond lengths are 3.03 Å. N1+ is bonded in a water-like geometry to one Br1- and one F1- atom. The N–Br bond length is 1.78 Å. The N–F bond length is 2.01 Å. Br1- is bonded in a distorted water-like geometry to one Bi5+ and one N1+ atom. F1- is bonded in a trigonal non-coplanar geometry to three equivalent N1+ atoms. In each BrF2 cluster, Br1- is bonded in a linear geometry to two equivalent F1- atoms. Both Br–F bond lengths are 1.98 Å. F1- is bonded in a single-bond geometry to one Br1- atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on NiSn(ClO)6 by Materials Project

NiO6SnCl6 crystallizes in the trigonal R-3 space group. The structure is zero-dimensional and consists of three NiO6 clusters and three SnCl6 clusters. In each NiO6 cluster, Ni is bonded in an octahedral geometry to six equivalent O atoms. All Ni–O bond lengths are 1.95 Å. O is bonded in a single-bond geometry to one Ni atom. In each SnCl6 cluster, Sn is bonded in an octahedral geometry to six equivalent Cl atoms. All Sn–Cl bond lengths are 2.47 Å. Cl is bonded in a single-bond geometry to one Sn atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on ZrNi(OF)6 by Materials Project

ZrF6NiO6 crystallizes in the trigonal R-3 space group. The structure is zero-dimensional and consists of three NiO6 clusters and three ZrF6 clusters. In each NiO6 cluster, Ni is bonded in an octahedral geometry to six equivalent O atoms. All Ni–O bond lengths are 1.84 Å. O is bonded in a single-bond geometry to one Ni atom. In each ZrF6 cluster, Zr is bonded in an octahedral geometry to six equivalent F atoms. All Zr–F bond lengths are 2.04 Å. F is bonded in a single-bond geometry to one Zr atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on ScC3(N3F2)3 by Materials Project

ScF6ScC6(N3F)6 is alpha Po structured and crystallizes in the cubic Pa-3 space group. The structure is zero-dimensional and consists of four ScC6(N3F)6 clusters and four ScF6 clusters. In each ScC6(N3F)6 cluster, Sc3+ is bonded in an octahedral geometry to six equivalent F1- atoms. All Sc–F bond lengths are 2.05 Å. C4+ is bonded in a trigonal planar geometry to three N1- atoms. There are a spread of C–N bond distances ranging from 1.34–1.38 Å. There are three inequivalent N1- sites. In the first N1- site, N1- is bonded in a distorted water-like geometry to one C4+ and one F1- atom. The N–F bond length is 1.70 Å. In the second N1- site, N1- is bonded in a 1-coordinate geometry to one C4+ atom. In the third N1- site, N1- is bonded in a distorted single-bond geometry to one C4+ atom. F1- is bonded in a distorted linear geometry to one Sc3+ and one N1- atom. In each ScF6 cluster, Sc3+ is bonded in an octahedral geometry to six equivalent F1- atoms. All Sc–F bond lengths are 2.07 Å. F1- is bonded in a distorted single-bond geometry to one Sc3+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Li2AlB5(H19N3)2 by Materials Project

Li2(BH4)3(BH4)2Al(NH3)6 crystallizes in the trigonal P-3c1 space group. The structure is two-dimensional and consists of two Al(NH3)6 clusters; four BH4 clusters; and two Li2(BH4)3 sheets oriented in the (0, 0, 1) direction. In each Al(NH3)6 cluster, Al3+ is bonded in an octahedral geometry to six equivalent N3- atoms. All Al–N bond lengths are 2.04 Å. N3- is bonded in a distorted trigonal non-coplanar geometry to one Al3+ and three H+0.74+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H+0.74+ sites. In the first H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one N3- atom. In the second H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one N3- atom. In the third H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one N3- atom. In each BH4 cluster, B3- is bonded in a tetrahedral geometry to four H+0.74+ atoms. All B–H bond lengths are 1.23 Å. There are two inequivalent H+0.74+ sites. In the first H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one B3- atom. In the second H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one B3- atom. In each Li2(BH4)3 sheet, Li1+ is bonded in a 6-coordinate geometry to six H+0.74+ atoms. There are three shorter (2.03 Å) and three longer (2.28 Å) Li–H bond lengths. B3- is bonded in a tetrahedral geometry to four H+0.74+ atoms. All B–H bond lengths are 1.23 Å. There are two inequivalent H+0.74+ sites. In the first H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one Li1+ and one B3- atom. In the second H+0.74+ site, H+0.74+ is bonded in a water-like geometry to one Li1+ and one B3- atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on AsXe2OF10 by Materials Project

(XeF2)4(AsF6)2O2 crystallizes in the tetragonal I4/mcm space group. The structure is zero-dimensional and consists of four water molecules, four AsF6 clusters, and eight XeF2 clusters. In each AsF6 cluster, As is bonded in an octahedral geometry to six equivalent F atoms. All As–F bond lengths are 1.78 Å. F is bonded in a single-bond geometry to one As atom. In each XeF2 cluster, Xe is bonded in a linear geometry to two equivalent F atoms. Both Xe–F bond lengths are 2.09 Å. F is bonded in a single-bond geometry to one Xe atom.

36 MATERIALS SCIENCE↗

DOE OSTI2024

Remotely Bonded Bridging Dioxygen Ligands Enhance Hydrogen Transfer in a Silica-Supported Tetrairidium Cluster Catalyst

A longstanding challenge in catalysis by noble metals has been to understand the origin of enhancements of rates of hydrogen transfer that result from bonding of oxygen near metal sites. We investigated structurally well-defined catalysts consisting of supported tetrairidium carbonyl clusters with single-atom (apical iridium) catalytic sites for ethylene hydrogenation. Reaction of the clusters with ethylene and H 2 followed by O 2 led to the onset of catalytic activity as a terminal CO ligand at each apical Ir atom was removed and bridging dioxygen ligands replaced CO ligands at neighboring (basal-plane) sites. The presence of the dioxygen ligands caused a 6-fold increase in the catalytic reaction rate, which is explained by the electron-withdrawing capability induced by the bridging dioxygen ligands, consistent with the inference that reductive elimination is rate determining. Electronic structure calculations demonstrate an additional role of the dioxygen ligands, changing the mechanism of hydrogen transfer from that involving equatorial hydride ligands to that involving bridging hydride ligands. This mechanism is made evident by an inverse kinetic isotope effect observed in ethylene hydrogenation reactions with H 2 and, alternatively, with D 2 on the cluster incorporating the dioxygen ligands, and is a consequence of quasi-equilibrated hydrogen transfer in this catalyst. The same mechanism accounts for rate enhancements induced by the bridging dioxygen ligands for the catalytic reaction of H 2 with D 2 to give HD. Here, we posit that the mechanism involving bridging hydride ligands facilitated by oxygen ligands remote from the catalytic site may have some generality in catalysis by oxide-supported noble metals.

02 PETROLEUM↗

DOE OSTI2020

Materials Data on SbP3C(NCl5)3 by Materials Project

CP3N3Cl7SbCl4(Cl2)2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four chlorine molecules, two CP3N3Cl7 clusters, and two SbCl4 clusters. In each CP3N3Cl7 cluster, C4+ is bonded in a trigonal planar geometry to three N3- atoms. There is two shorter (1.35 Å) and one longer (1.37 Å) C–N bond length. There are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded in a water-like geometry to one N3- and one Cl1- atom. The P–N bond length is 1.59 Å. The P–Cl bond length is 2.01 Å. In the second P5+ site, P5+ is bonded in a tetrahedral geometry to one N3- and three Cl1- atoms. The P–N bond length is 1.58 Å. There are a spread of P–Cl bond distances ranging from 1.98–2.00 Å. In the third P5+ site, P5+ is bonded in a tetrahedral geometry to one N3- and three Cl1- atoms. The P–N bond length is 1.59 Å. There is two shorter (1.98 Å) and one longer (2.00 Å) P–Cl bond length. There are three inequivalent N3- sites. In the first N3- site, N3- is bonded in a bent 120 degrees geometry to one C4+ and one P5+ atom. In the second N3- site, N3- is bonded in a bent 120 degrees geometry to one C4+ and one P5+ atom. In the third N3- site, N3- is bonded in a bent 120 degrees geometry to one C4+ and one P5+ atom. There are seven inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the seventh Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In each SbCl4 cluster, Sb5+ is bonded in a distorted trigonal pyramidal geometry to four Cl1- atoms. There are a spread of Sb–Cl bond distances ranging from 2.42–2.64 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb5+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb5+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb5+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on BiBr7(N3F2)2 by Materials Project

Bi(N3Br3F)2BrF2 is alpha bismuth trifluoride structured and crystallizes in the cubic Pa-3 space group. The structure is zero-dimensional and consists of four bismuth, elemental molecules; four BrF2 clusters; and eight N3Br3F clusters. In each BrF2 cluster, Br1- is bonded in a linear geometry to two equivalent F1- atoms. Both Br–F bond lengths are 1.92 Å. F1- is bonded in a single-bond geometry to one Br1- atom. In each N3Br3F cluster, N1+ is bonded in a single-bond geometry to one Br1- atom. The N–Br bond length is 1.78 Å. Br1- is bonded in a linear geometry to one N1+ and one F1- atom. The Br–F bond length is 2.41 Å. F1- is bonded in a trigonal non-coplanar geometry to three equivalent Br1- atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on SbXe2F9 by Materials Project

Xe2F3SbF6 crystallizes in the monoclinic Cc space group. The structure is zero-dimensional and consists of four SbF6 clusters and four Xe2F3 clusters. In each SbF6 cluster, Sb is bonded in an octahedral geometry to six F atoms. There is three shorter (1.92 Å) and three longer (1.93 Å) Sb–F bond length. There are six inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Sb atom. In the second F site, F is bonded in a single-bond geometry to one Sb atom. In the third F site, F is bonded in a single-bond geometry to one Sb atom. In the fourth F site, F is bonded in a single-bond geometry to one Sb atom. In the fifth F site, F is bonded in a single-bond geometry to one Sb atom. In the sixth F site, F is bonded in a single-bond geometry to one Sb atom. In each Xe2F3 cluster, there are two inequivalent Xe sites. In the first Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.01 Å) and one longer (2.22 Å) Xe–F bond lengths. In the second Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.01 Å) and one longer (2.21 Å) Xe–F bond lengths. There are three inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a bent 150 degrees geometry to two Xe atoms. In the third F site, F is bonded in a single-bond geometry to one Xe atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on AsBrKr2OF12 by Materials Project

Kr2OBrF6AsF6 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four AsF6 clusters and four Kr2OBrF6 clusters. In each AsF6 cluster, As is bonded in an octahedral geometry to six F atoms. There are a spread of As–F bond distances ranging from 1.76–1.82 Å. There are six inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one As atom. In the second F site, F is bonded in a single-bond geometry to one As atom. In the third F site, F is bonded in a single-bond geometry to one As atom. In the fourth F site, F is bonded in a single-bond geometry to one As atom. In the fifth F site, F is bonded in a single-bond geometry to one As atom. In the sixth F site, F is bonded in a single-bond geometry to one As atom. In each Kr2OBrF6 cluster, there are two inequivalent Kr sites. In the first Kr site, Kr is bonded in a linear geometry to two F atoms. There is one shorter (1.89 Å) and one longer (2.00 Å) Kr–F bond length. In the second Kr site, Kr is bonded in a linear geometry to two F atoms. There is one shorter (1.90 Å) and one longer (1.99 Å) Kr–F bond length. O is bonded in a single-bond geometry to one Br atom. The O–Br bond length is 1.59 Å. Br is bonded in a 5-coordinate geometry to one O and four F atoms. There are a spread of Br–F bond distances ranging from 1.79–2.37 Å. There are six inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Kr atom. In the second F site, F is bonded in a single-bond geometry to one Kr atom. In the third F site, F is bonded in a bent 150 degrees geometry to one Kr and one Br atom. In the fourth F site, F is bonded in a single-bond geometry to one Br atom. In the fifth F site, F is bonded in a single-bond geometry to one Br atom. In the sixth F site, F is bonded in a distorted bent 120 degrees geometry to one Kr and one Br atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Ti2H2CSe4Cl16O5 by Materials Project

Ti2OCl6CO2(HSeOCl2)2(SeCl)2(Cl2)2 crystallizes in the monoclinic P2/c space group. The structure is zero-dimensional and consists of two carbon dioxide molecules, four chlorine molecules, four chloroselenurane molecules, two HSeOCl2 clusters, and two Ti2OCl6 clusters. In each HSeOCl2 cluster, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. Se3+ is bonded in a distorted L-shaped geometry to one O2- and one Cl1- atom. The Se–O bond length is 1.81 Å. The Se–Cl bond length is 2.39 Å. O2- is bonded in a distorted water-like geometry to one H1+ and one Se3+ atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted linear geometry to two Cl1- atoms. There are one shorter (2.08 Å) and one longer (2.92 Å) Cl–Cl bond lengths. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se3+ and one Cl1- atom. In each Ti2OCl6 cluster, Ti4+ is bonded to one O2- and three Cl1- atoms to form corner-sharing TiCl3O tetrahedra. The Ti–O bond length is 1.79 Å. There are two shorter (2.19 Å) and one longer (2.21 Å) Ti–Cl bond lengths. O2- is bonded in a linear geometry to two equivalent Ti4+ atoms. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti4+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti4+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti4+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on V6SbH35C12Cl8O19 by Materials Project

V6C11H33O19CH2Cl2SbCl6 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two dichloromethane molecules, two SbCl6 clusters, and two V6C11H33O19 clusters. In each SbCl6 cluster, Sb is bonded in an octahedral geometry to six Cl atoms. There are a spread of Sb–Cl bond distances ranging from 2.41–2.43 Å. There are six inequivalent Cl sites. In the first Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the second Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the third Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the fourth Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the fifth Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the sixth Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In each V6C11H33O19 cluster, there are six inequivalent V sites. In the first V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.61–2.38 Å. In the second V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.62–2.39 Å. In the third V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.62–2.34 Å. In the fourth V site, V is bonded to six O atoms to form distorted VO6 octahedra that share corners with four CH3O tetrahedra. There are a spread of V–O bond distances ranging from 1.61–2.22 Å. In the fifth V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.62–2.32 Å. In the sixth V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.61–2.25 Å. There are eleven inequivalent C sites. In the first C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the second C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 56°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the third C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the fourth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.45 Å. In the fifth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the sixth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.45 Å. In the seventh C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 57°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the eighth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the ninth C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 52°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the tenth C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 58°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the eleventh C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. There are thirty-three inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one C atom. In the second H site, H is bonded in a single-bond geometry to one C atom. In the third H site, H is bonded in a single-bond geometry to one C atom. In the fourth H site, H is bonded in a single-bond geometry to one C atom. In the fifth H site, H is bonded in a single-bond geometry to one C atom. In the sixth H site, H is bonded in a single-bond geometry to one C atom. In the seventh H site, H is bonded in a single-bond geometry to one C atom. In the eighth H site, H is bonded in a single-bond geometry to one C atom. In the ninth H site, H is bonded in a single-bond geometry to one C atom. In the tenth H site, H is bonded in a single-bond geometry to one C atom. In the eleventh H site, H is bonded in a single-bond geometry to one C atom. In the twelfth H site, H is bonded in a single-bond geometry to one C atom. In the thirteenth H site, H is bonded in a single-bond geometry to one C atom. In the fourteenth H site, H is bonded in a single-bond geometry to one C atom. In the fifteenth H site, H is bonded in a single-bond geometry to one C atom. In the sixteenth H site, H is bonded in a single-bond geometry to one C atom. In the seventeenth H site, H is bonded in a single-bond geometry to one C atom. In the eighteenth H site, H is bonded in a single-bond geometry to one C atom. In the nineteenth H site, H is bonded in a single-bond geometry to one C atom. In the twentieth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-first H site, H is bonded in a single-bond geometry to one C atom. In the twenty-second H site, H is bonded in a single-bond geometry to one C atom. In the twenty-third H site, H is bonded in a single-bond geometry to one C atom. In the twenty-fourth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-fifth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-sixth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-seventh H site, H is bonded in a single-bond geometry to one C atom. In the twenty-eighth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-ninth H site, H is bonded in a single-bond geometry to one C atom. In the thirtieth H site, H is bonded in a single-bond geometry to one C atom. In the thirty-first H site, H is bonded in a single-bond geometry to one C atom. In the thirty-second H site, H is bonded in a single-bond geometry to one C atom. In the thirty-third H site, H is bonded in a single-bond geometry to one C atom. There are nineteen inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one V atom. In the second O site, O is bonded in a single-bond geometry to one V atom. In the third O site, O is bonded in a single-bond geometry to one V atom. In the fourth O site, O is bonded in a single-bond geometry to one V atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to two V atoms. In the sixth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the seventh O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the eighth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the ninth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the tenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the eleventh O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the twelfth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the thirteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the fourteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the fifteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the sixteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the seventeenth O site, O is bonded in an octahedral geometry to six V atoms. In the eighteenth O site, O is bonded in a single-bond geometry to one V atom. In the nineteenth O site, O is bonded in a single-bond geometry to one V atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Al(BiCl)4 by Materials Project

(Bi)4AlCl4 crystallizes in the hexagonal P6_3 space group. The structure is zero-dimensional and consists of twelve AlCl4 clusters and six Bi clusters. In each AlCl4 cluster, Al is bonded in a tetrahedral geometry to four Cl atoms. There are three shorter (2.16 Å) and one longer (2.17 Å) Al–Cl bond lengths. There are two inequivalent Cl sites. In the first Cl site, Cl is bonded in a single-bond geometry to one Al atom. In the second Cl site, Cl is bonded in a single-bond geometry to one Al atom. In each Bi cluster, there are eight inequivalent Bi sites. In the first Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. There are a spread of Bi–Bi bond distances ranging from 3.09–3.18 Å. In the second Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. There are one shorter (3.10 Å) and two longer (3.19 Å) Bi–Bi bond lengths. In the third Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. There are a spread of Bi–Bi bond distances ranging from 3.09–3.18 Å. In the fourth Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. There are one shorter (3.08 Å) and one longer (3.10 Å) Bi–Bi bond lengths. In the fifth Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. The Bi–Bi bond length is 3.08 Å. In the sixth Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. Both Bi–Bi bond lengths are 3.19 Å. In the seventh Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. The Bi–Bi bond length is 3.08 Å. In the eighth Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Promoting the cleavage of C-O bonds at the interface between a metal oxide cluster and a Co(0001) support

As a first step toward the rational design of Co-based catalysts with a higher activity and selectivity, we determine how one can activate a C-O bond at the interface between a metal oxide cluster and a Co(0001) support. The hypothesis here is that the metal ions in metal oxide clusters on a Co(0001) support enhance the adsorption of CO and weaken the C-O bond strength, which can then facilitate the dissociation of the CO reactant. To test this hypothesis, we developed three computational models of Ti4O8/Co(0001), Zr4O8/Co(0001), and Mn8O8/Co(0001). We quantify the CO adsorption behavior at the interface sites between an oxide cluster and the Co(0001) support as well as the corresponding IR spectra. We correlate the computed CO stretch frequencies with their CO adsorption energies, as well as the CO stretch frequency with the C-O bond length, and related these findings to the changes in the chemical bonding in the bound CO. The interface is the most favorable site for CO adsorption. Adsorption results in an increase of the C-O bond length and a decrease in its vibrational frequency. From a chemical bonding analysis, the bond order in CO at this site drops from 3 (in the gas phase) to 1. This decrease in bond order is a necessary precursor stage for CO dissociation. The experimental measurements of the corresponding FTIR spectra support this point. The favorability of CO adsorption at the interface sites is due to an electron transfer from the metal ion in the metal oxide cluster to the O atom in CO. We establish a linear relationship between C-O bond length and CO frequency and this relationship is found to be independent of the support, type of metal oxide cluster, or the adsorption site.

Fischer-Tropsch Synthesis, Heterogeneous Catalysis↗