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DOE OSTI2020

Materials Data on OsXe(O2F3)2 by Materials Project

XeOF4OsO3F2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one OsO3F2 cluster and two XeOF4 clusters. In the OsO3F2 cluster, Os is bonded in a 6-coordinate geometry to three O and three F atoms. All Os–O bond lengths are 1.71 Å. There are a spread of Os–F bond distances ranging from 1.96–2.16 Å. There are three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Os atom. In the second O site, O is bonded in a single-bond geometry to one Os atom. In the third O site, O is bonded in a single-bond geometry to one Os atom. There are two inequivalent F sites. In the first F site, F is bonded in a water-like geometry to two equivalent Os atoms. In the second F site, F is bonded in a single-bond geometry to one Os atom. In each XeOF4 cluster, Xe is bonded in a square pyramidal geometry to one O and four F atoms. The Xe–O bond length is 1.83 Å. There are two shorter (2.03 Å) and two longer (2.04 Å) Xe–F bond lengths. O is bonded in a single-bond geometry to one Xe atom. There are four 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.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os2C6SO6 by Materials Project

Os2C6SO6 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Os2C6SO6 clusters. there are four inequivalent Os1- sites. In the first Os1- site, Os1- is bonded in a distorted rectangular see-saw-like geometry to three C+2.67+ and one S2- atom. There are a spread of Os–C bond distances ranging from 1.89–1.91 Å. The Os–S bond length is 2.40 Å. In the second Os1- site, Os1- is bonded in a distorted rectangular see-saw-like geometry to three C+2.67+ and one S2- atom. There is one shorter (1.89 Å) and two longer (1.90 Å) Os–C bond length. The Os–S bond length is 2.40 Å. In the third Os1- site, Os1- is bonded to three C+2.67+ and two S2- atoms to form distorted edge-sharing OsC3S2 square pyramids. There is two shorter (1.91 Å) and one longer (1.92 Å) Os–C bond length. There are one shorter (2.45 Å) and one longer (2.47 Å) Os–S bond lengths. In the fourth Os1- site, Os1- is bonded to three C+2.67+ and two S2- atoms to form distorted edge-sharing OsC3S2 square pyramids. There are a spread of Os–C bond distances ranging from 1.90–1.93 Å. There are one shorter (2.44 Å) and one longer (2.47 Å) Os–S bond lengths. There are twelve inequivalent C+2.67+ sites. In the first C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the seventh C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the ninth C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the eleventh C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the twelfth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three Os1- atoms. In the second S2- site, S2- is bonded in a 3-coordinate geometry to three Os1- atoms. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os4C13(SO6)2 by Materials Project

Os4C13(SO6)2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Os4C13(SO6)2 clusters. there are four inequivalent Os2- sites. In the first Os2- site, Os2- is bonded in a 5-coordinate geometry to four C+2.77+ and one S2- atom. There are a spread of Os–C bond distances ranging from 1.90–2.16 Å. The Os–S bond length is 2.49 Å. In the second Os2- site, Os2- is bonded to four C+2.77+ and one S2- atom to form distorted edge-sharing OsC4S trigonal bipyramids. There are a spread of Os–C bond distances ranging from 1.91–2.19 Å. The Os–S bond length is 2.44 Å. In the third Os2- site, Os2- is bonded to four C+2.77+ and one S2- atom to form distorted edge-sharing OsC4S trigonal bipyramids. There are a spread of Os–C bond distances ranging from 1.91–2.23 Å. The Os–S bond length is 2.47 Å. In the fourth Os2- site, Os2- is bonded to four C+2.77+ and one S2- atom to form distorted edge-sharing OsC4S trigonal bipyramids. There are a spread of Os–C bond distances ranging from 1.91–2.23 Å. The Os–S bond length is 2.47 Å. There are thirteen inequivalent C+2.77+ sites. In the first C+2.77+ site, C+2.77+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.77+ site, C+2.77+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C+2.77+ site, C+2.77+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the seventh C+2.77+ site, C+2.77+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C+2.77+ site, C+2.77+ is bonded in a distorted trigonal bipyramidal geometry to four Os2- and one S2- atom. The C–S bond length is 1.75 Å. In the ninth C+2.77+ site, C+2.77+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the eleventh C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the twelfth C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the thirteenth C+2.77+ site, C+2.77+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to three Os2- atoms. In the second S2- site, S2- is bonded in a 1-coordinate geometry to one Os2- and one C+2.77+ atom. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one C+2.77+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsRe2OsSe4Cl3 by Materials Project

CsRe2OsSe4Cl3 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six Cl1- atoms. There are a spread of Cs–Cl bond distances ranging from 3.81–3.84 Å. In the second Cs1+ site, Cs1+ is bonded in a distorted cuboctahedral geometry to six Se2- and six Cl1- atoms. There are a spread of Cs–Se bond distances ranging from 3.97–4.01 Å. There are a spread of Cs–Cl bond distances ranging from 4.20–4.24 Å. There are four inequivalent Re6+ sites. In the first Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two Os2-, four Se2-, and one Cl1- atom. Both Re–Os bond lengths are 2.65 Å. There are three shorter (2.54 Å) and one longer (2.55 Å) Re–Se bond lengths. The Re–Cl bond length is 2.41 Å. In the second Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two Os2-, four Se2-, and one Cl1- atom. There are one shorter (2.65 Å) and one longer (2.66 Å) Re–Os bond lengths. There are three shorter (2.54 Å) and one longer (2.55 Å) Re–Se bond lengths. The Re–Cl bond length is 2.41 Å. In the third Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two Os2-, four Se2-, and one Cl1- atom. There are one shorter (2.65 Å) and one longer (2.66 Å) Re–Os bond lengths. There are three shorter (2.54 Å) and one longer (2.55 Å) Re–Se bond lengths. The Re–Cl bond length is 2.41 Å. In the fourth Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two Os2-, four Se2-, and one Cl1- atom. Both Re–Os bond lengths are 2.65 Å. There are three shorter (2.54 Å) and one longer (2.55 Å) Re–Se bond lengths. The Re–Cl bond length is 2.41 Å. There are two inequivalent Os2- sites. In the first Os2- site, Os2- is bonded in a 1-coordinate geometry to four Re6+, four Se2-, and one Cl1- atom. There are a spread of Os–Se bond distances ranging from 2.51–2.53 Å. The Os–Cl bond length is 2.41 Å. In the second Os2- site, Os2- is bonded in a 1-coordinate geometry to four Re6+, four Se2-, and one Cl1- atom. There are a spread of Os–Se bond distances ranging from 2.51–2.53 Å. The Os–Cl bond length is 2.41 Å. There are eight inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 9-coordinate geometry to two Re6+ and one Os2- atom. In the second Se2- site, Se2- is bonded in a 9-coordinate geometry to two Re6+ and one Os2- atom. In the third Se2- site, Se2- is bonded in a 7-coordinate geometry to one Cs1+, two Re6+, and one Os2- atom. In the fourth Se2- site, Se2- is bonded in a 4-coordinate geometry to one Cs1+, two Re6+, and one Os2- atom. In the fifth Se2- site, Se2- is bonded in a 7-coordinate geometry to one Cs1+, two Re6+, and one Os2- atom. In the sixth Se2- site, Se2- is bonded in a 7-coordinate geometry to one Cs1+, two Re6+, and one Os2- atom. In the seventh Se2- site, Se2- is bonded in a 7-coordinate geometry to one Cs1+, two Re6+, and one Os2- atom. In the eighth Se2- site, Se2- is bonded in a 7-coordinate geometry to one Cs1+, two Re6+, and one Os2- atom. There are six inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Os2- atom. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Re6+ atom. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Re6+ atom. In the fourth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Re6+ atom. In the fifth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Os2- atom. In the sixth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Re6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaCeOs4 by Materials Project

CeLaOs4 is Cubic Laves-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Ce3+ is bonded in a 12-coordinate geometry to twelve equivalent Os+1.50- atoms. All Ce–Os bond lengths are 3.19 Å. La3+ is bonded in a 12-coordinate geometry to twelve equivalent Os+1.50- atoms. All La–Os bond lengths are 3.19 Å. Os+1.50- is bonded to three equivalent Ce3+, three equivalent La3+, and six equivalent Os+1.50- atoms to form a mixture of edge, face, and corner-sharing OsLa3Ce3Os6 cuboctahedra. There are three shorter (2.71 Å) and three longer (2.72 Å) Os–Os bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on IrOsRu by Materials Project

OsRuIr is Copper-derived structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. Os is bonded to six equivalent Os, three equivalent Ru, and three equivalent Ir atoms to form OsIr3Os6Ru3 cuboctahedra that share corners with three equivalent RuIr3Os3Ru6 cuboctahedra, corners with three equivalent IrIr6Os3Ru3 cuboctahedra, corners with six equivalent OsIr3Os6Ru3 cuboctahedra, edges with six equivalent OsIr3Os6Ru3 cuboctahedra, edges with nine equivalent RuIr3Os3Ru6 cuboctahedra, edges with nine equivalent IrIr6Os3Ru3 cuboctahedra, faces with six equivalent OsIr3Os6Ru3 cuboctahedra, faces with six equivalent RuIr3Os3Ru6 cuboctahedra, and faces with six equivalent IrIr6Os3Ru3 cuboctahedra. All Os–Os bond lengths are 2.73 Å. All Os–Ru bond lengths are 2.67 Å. All Os–Ir bond lengths are 2.75 Å. Ru is bonded to three equivalent Os, six equivalent Ru, and three equivalent Ir atoms to form RuIr3Os3Ru6 cuboctahedra that share corners with three equivalent OsIr3Os6Ru3 cuboctahedra, corners with three equivalent IrIr6Os3Ru3 cuboctahedra, corners with six equivalent RuIr3Os3Ru6 cuboctahedra, edges with six equivalent RuIr3Os3Ru6 cuboctahedra, edges with nine equivalent OsIr3Os6Ru3 cuboctahedra, edges with nine equivalent IrIr6Os3Ru3 cuboctahedra, faces with six equivalent OsIr3Os6Ru3 cuboctahedra, faces with six equivalent RuIr3Os3Ru6 cuboctahedra, and faces with six equivalent IrIr6Os3Ru3 cuboctahedra. All Ru–Ru bond lengths are 2.73 Å. All Ru–Ir bond lengths are 2.76 Å. Ir is bonded to three equivalent Os, three equivalent Ru, and six equivalent Ir atoms to form IrIr6Os3Ru3 cuboctahedra that share corners with three equivalent OsIr3Os6Ru3 cuboctahedra, corners with three equivalent RuIr3Os3Ru6 cuboctahedra, corners with six equivalent IrIr6Os3Ru3 cuboctahedra, edges with six equivalent IrIr6Os3Ru3 cuboctahedra, edges with nine equivalent OsIr3Os6Ru3 cuboctahedra, edges with nine equivalent RuIr3Os3Ru6 cuboctahedra, faces with six equivalent OsIr3Os6Ru3 cuboctahedra, faces with six equivalent RuIr3Os3Ru6 cuboctahedra, and faces with six equivalent IrIr6Os3Ru3 cuboctahedra. All Ir–Ir bond lengths are 2.73 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeIrOs by Materials Project

CeOsIr is Cubic Laves-derived structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to six equivalent Os and six equivalent Ir atoms. There are four shorter (3.18 Å) and two longer (3.24 Å) Ce–Os bond lengths. There are four shorter (3.07 Å) and two longer (3.28 Å) Ce–Ir bond lengths. Os is bonded to six equivalent Ce, two equivalent Os, and four equivalent Ir atoms to form OsCe6Ir4Os2 cuboctahedra that share corners with eight equivalent IrCe6Ir2Os4 cuboctahedra, corners with ten equivalent OsCe6Ir4Os2 cuboctahedra, edges with six equivalent OsCe6Ir4Os2 cuboctahedra, faces with six equivalent OsCe6Ir4Os2 cuboctahedra, and faces with twelve equivalent IrCe6Ir2Os4 cuboctahedra. Both Os–Os bond lengths are 2.56 Å. All Os–Ir bond lengths are 2.73 Å. Ir is bonded to six equivalent Ce, four equivalent Os, and two equivalent Ir atoms to form IrCe6Ir2Os4 cuboctahedra that share corners with eight equivalent OsCe6Ir4Os2 cuboctahedra, corners with ten equivalent IrCe6Ir2Os4 cuboctahedra, edges with six equivalent IrCe6Ir2Os4 cuboctahedra, faces with six equivalent IrCe6Ir2Os4 cuboctahedra, and faces with twelve equivalent OsCe6Ir4Os2 cuboctahedra. Both Ir–Ir bond lengths are 2.74 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Dy5(Sn3Os)6 by Materials Project

Dy5Os6Sn17Sn crystallizes in the cubic F-43m space group. The structure is three-dimensional and consists of four 7440-31-5 molecules and one Dy5Os6Sn17 framework. In the Dy5Os6Sn17 framework, there are two inequivalent Dy sites. In the first Dy site, Dy is bonded in a 12-coordinate geometry to six equivalent Os and twelve equivalent Sn atoms. All Dy–Os bond lengths are 3.55 Å. All Dy–Sn bond lengths are 3.46 Å. In the second Dy site, Dy is bonded in a 1-coordinate geometry to three equivalent Os and ten Sn atoms. All Dy–Os bond lengths are 3.03 Å. There are a spread of Dy–Sn bond distances ranging from 2.95–3.37 Å. Os is bonded in a 9-coordinate geometry to three Dy and six Sn atoms. There are four shorter (2.68 Å) and two longer (2.83 Å) Os–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a tetrahedral geometry to four equivalent Dy atoms. In the second Sn site, Sn is bonded in a hexagonal planar geometry to three equivalent Dy and three equivalent Os atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to three Dy and two equivalent Os atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeOsRu by Materials Project

CeOsRu is Cubic Laves-derived structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to six equivalent Os and six equivalent Ru atoms. There are two shorter (3.14 Å) and four longer (3.21 Å) Ce–Os bond lengths. There are four shorter (3.10 Å) and two longer (3.19 Å) Ce–Ru bond lengths. Os is bonded to six equivalent Ce, two equivalent Os, and four equivalent Ru atoms to form OsCe6Os2Ru4 cuboctahedra that share corners with eight equivalent RuCe6Os4Ru2 cuboctahedra, corners with ten equivalent OsCe6Os2Ru4 cuboctahedra, edges with six equivalent OsCe6Os2Ru4 cuboctahedra, faces with six equivalent OsCe6Os2Ru4 cuboctahedra, and faces with twelve equivalent RuCe6Os4Ru2 cuboctahedra. Both Os–Os bond lengths are 2.61 Å. All Os–Ru bond lengths are 2.70 Å. Ru is bonded to six equivalent Ce, four equivalent Os, and two equivalent Ru atoms to form RuCe6Os4Ru2 cuboctahedra that share corners with eight equivalent OsCe6Os2Ru4 cuboctahedra, corners with ten equivalent RuCe6Os4Ru2 cuboctahedra, edges with six equivalent RuCe6Os4Ru2 cuboctahedra, faces with six equivalent RuCe6Os4Ru2 cuboctahedra, and faces with twelve equivalent OsCe6Os2Ru4 cuboctahedra. Both Ru–Ru bond lengths are 2.77 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThIrOs by Materials Project

ThOsIr is Cubic Laves-derived structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to six equivalent Os and six equivalent Ir atoms. There are four shorter (3.23 Å) and two longer (3.24 Å) Th–Os bond lengths. There are four shorter (3.12 Å) and two longer (3.31 Å) Th–Ir bond lengths. Os is bonded to six equivalent Th, two equivalent Os, and four equivalent Ir atoms to form OsTh6Ir4Os2 cuboctahedra that share corners with eight equivalent IrTh6Ir2Os4 cuboctahedra, corners with ten equivalent OsTh6Ir4Os2 cuboctahedra, edges with six equivalent OsTh6Ir4Os2 cuboctahedra, faces with six equivalent OsTh6Ir4Os2 cuboctahedra, and faces with twelve equivalent IrTh6Ir2Os4 cuboctahedra. Both Os–Os bond lengths are 2.61 Å. All Os–Ir bond lengths are 2.76 Å. Ir is bonded to six equivalent Th, four equivalent Os, and two equivalent Ir atoms to form IrTh6Ir2Os4 cuboctahedra that share corners with eight equivalent OsTh6Ir4Os2 cuboctahedra, corners with ten equivalent IrTh6Ir2Os4 cuboctahedra, edges with six equivalent IrTh6Ir2Os4 cuboctahedra, faces with six equivalent IrTh6Ir2Os4 cuboctahedra, and faces with twelve equivalent OsTh6Ir4Os2 cuboctahedra. Both Ir–Ir bond lengths are 2.77 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La20Os12C13 by Materials Project

La20Os12C13 crystallizes in the monoclinic P2/m space group. The structure is three-dimensional. there are eight inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 5-coordinate geometry to two equivalent Os2- and three C+2.77- atoms. Both La–Os bond lengths are 3.26 Å. There are a spread of La–C bond distances ranging from 2.71–3.00 Å. In the second La3+ site, La3+ is bonded in a 4-coordinate geometry to two equivalent Os2- and two C+2.77- atoms. Both La–Os bond lengths are 3.24 Å. There are one shorter (2.83 Å) and one longer (2.85 Å) La–C bond lengths. In the third La3+ site, La3+ is bonded in a 4-coordinate geometry to two Os2- and two C+2.77- atoms. There are one shorter (3.22 Å) and one longer (3.24 Å) La–Os bond lengths. There are one shorter (2.85 Å) and one longer (2.86 Å) La–C bond lengths. In the fourth La3+ site, La3+ is bonded in a 5-coordinate geometry to two Os2- and three C+2.77- atoms. There are one shorter (3.23 Å) and one longer (3.24 Å) La–Os bond lengths. There are a spread of La–C bond distances ranging from 2.72–3.02 Å. In the fifth La3+ site, La3+ is bonded in a trigonal planar geometry to three C+2.77- atoms. There are two shorter (2.65 Å) and one longer (2.66 Å) La–C bond lengths. In the sixth La3+ site, La3+ is bonded in a trigonal planar geometry to three C+2.77- atoms. All La–C bond lengths are 2.66 Å. In the seventh La3+ site, La3+ is bonded in a trigonal planar geometry to three C+2.77- atoms. All La–C bond lengths are 2.65 Å. In the eighth La3+ site, La3+ is bonded in a trigonal planar geometry to three C+2.77- atoms. There are two shorter (2.65 Å) and one longer (2.67 Å) La–C bond lengths. There are four inequivalent Os2- sites. In the first Os2- site, Os2- is bonded in a distorted bent 120 degrees geometry to two equivalent La3+ and two C+2.77- atoms. There is one shorter (1.91 Å) and one longer (1.92 Å) Os–C bond length. In the second Os2- site, Os2- is bonded in a distorted bent 120 degrees geometry to two equivalent La3+ and two C+2.77- atoms. Both Os–C bond lengths are 1.93 Å. In the third Os2- site, Os2- is bonded in a distorted bent 120 degrees geometry to two La3+ and two C+2.77- atoms. There is one shorter (1.92 Å) and one longer (1.93 Å) Os–C bond length. In the fourth Os2- site, Os2- is bonded in a distorted bent 120 degrees geometry to two La3+ and two C+2.77- atoms. Both Os–C bond lengths are 1.92 Å. There are seven inequivalent C+2.77- sites. In the first C+2.77- site, C+2.77- is bonded to four La3+ and two equivalent Os2- atoms to form a mixture of edge and corner-sharing CLa4Os2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the second C+2.77- site, C+2.77- is bonded to four La3+ and two equivalent Os2- atoms to form a mixture of edge and corner-sharing CLa4Os2 octahedra. The corner-sharing octahedra tilt angles range from 60–70°. In the third C+2.77- site, C+2.77- is bonded to four La3+ and two Os2- atoms to form a mixture of edge and corner-sharing CLa4Os2 octahedra. The corner-sharing octahedra tilt angles range from 60–69°. In the fourth C+2.77- site, C+2.77- is bonded to four La3+ and two equivalent Os2- atoms to form a mixture of edge and corner-sharing CLa4Os2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the fifth C+2.77- site, C+2.77- is bonded to four La3+ and two equivalent Os2- atoms to form a mixture of edge and corner-sharing CLa4Os2 octahedra. The corner-sharing octahedra tilt angles range from 1–60°. In the sixth C+2.77- site, C+2.77- is bonded to four La3+ and two Os2- atoms to form a mixture of edge and corner-sharing CLa4Os2 octahedra. The corner-sharing octahedra tilt angles range from 1–61°. In the seventh C+2.77- site, C+2.77- is bonded to six La3+ atoms to form corner-sharing CLa6 octahedra. The corner-sharing octahedra tilt angles range from 1–70°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Re2Os(Se2Cl)2 by Materials Project

Re2Os(Se2Cl)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one Re2Os(Se2Cl)2 sheet oriented in the (1, -1, 0) direction. there are four inequivalent Re6+ sites. In the first Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two equivalent Os2- and five Se2- atoms. There are one shorter (2.65 Å) and one longer (2.66 Å) Re–Os bond lengths. There are a spread of Re–Se bond distances ranging from 2.52–2.67 Å. In the second Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two equivalent Os2-, four Se2-, and one Cl1- atom. There are one shorter (2.65 Å) and one longer (2.66 Å) Re–Os bond lengths. There are one shorter (2.53 Å) and three longer (2.54 Å) Re–Se bond lengths. The Re–Cl bond length is 2.49 Å. In the third Re6+ site, Re6+ is bonded in a 5-coordinate geometry to two equivalent Os2-, four Se2-, and one Cl1- atom. There are one shorter (2.66 Å) and one longer (2.67 Å) Re–Os bond lengths. There are a spread of Re–Se bond distances ranging from 2.50–2.58 Å. The Re–Cl bond length is 2.51 Å. In the fourth Re6+ site, Re6+ is bonded in a 1-coordinate geometry to two equivalent Os2-, four Se2-, and one Cl1- atom. There are one shorter (2.66 Å) and one longer (2.67 Å) Re–Os bond lengths. There are a spread of Re–Se bond distances ranging from 2.52–2.56 Å. The Re–Cl bond length is 2.37 Å. There are two inequivalent Os2- sites. In the first Os2- site, Os2- is bonded in a 1-coordinate geometry to four Re6+, four Se2-, and one Cl1- atom. There are a spread of Os–Se bond distances ranging from 2.51–2.53 Å. The Os–Cl bond length is 2.37 Å. In the second Os2- site, Os2- is bonded in a 1-coordinate geometry to four Re6+, four Se2-, and one Cl1- atom. There are a spread of Os–Se bond distances ranging from 2.51–2.53 Å. The Os–Cl bond length is 2.37 Å. There are eight inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 8-coordinate geometry to two Re6+ and one Os2- atom. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to two Re6+ and one Os2- atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to two Re6+ and one Os2- atom. In the fourth Se2- site, Se2- is bonded in a 6-coordinate geometry to two Re6+ and one Os2- atom. In the fifth Se2- site, Se2- is bonded in a 4-coordinate geometry to two Re6+ and one Os2- atom. In the sixth Se2- site, Se2- is bonded in a 5-coordinate geometry to two Re6+ and one Os2- atom. In the seventh Se2- site, Se2- is bonded in a 4-coordinate geometry to three Re6+ and one Os2- atom. In the eighth Se2- site, Se2- is bonded in a 4-coordinate geometry to two Re6+, one Os2-, and one Cl1- atom. The Se–Cl bond length is 3.41 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Os2- atom. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Os2- atom. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Re6+ and one Se2- atom. In the fourth Cl1- site, Cl1- is bonded in a bent 120 degrees geometry to two Re6+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2023

Engineered bone marrow as a clinically relevant ex vivo model for primary bone cancer research and drug screening

Osteosarcoma (OS) is the most common primary malignant bone cancer in children and adolescents. While numerous other cancers now have promising therapeutic advances, treatment options for OS have remained unchanged since the advent of standard chemotherapeutics and offer less than a 25% 5-y survival rate for those with metastatic disease. This dearth of clinical progress underscores a lack of understanding of OS progression and necessitates the study of this disease in an innovative system. Here, we adapt a previously described engineered bone marrow (eBM) construct for use as a three-dimensional platform to study how microenvironmental and immune factors affect OS tumor progression. We form eBM by implanting acellular bone-forming materials in mice and explanting the cellularized constructs after 8 wk for study. We interrogate the influence of the anatomical implantation site on eBM tissue quality, test ex vivo stability under normoxic (5% O 2 ) and standard (21% O 2 ) culture conditions, culture OS cells within these constructs, and compare them to human OS samples. We show that eBM stably recapitulates the composition of native bone marrow. OS cells exhibit differential behavior dependent on metastatic potential when cultured in eBM, thus mimicking in vivo conditions. Furthermore, we highlight the clinical applicability of eBM as a drug-screening platform through doxorubicin treatment and show that eBM confers a protective effect on OS cells that parallel clinical responses. Combined, this work presents eBM as a cellular construct that mimics the complex bone marrow environment that is useful for mechanistic bone cancer research and drug screening.

59 BASIC BIOLOGICAL SCIENCES↗
DOE OSTI2026

Multisite Field Evaluation of Oil Accumulation and Agronomic Performance in Grain and Sweet Sorghums Engineered for Lipid Hyperaccumulation

Oil sorghum (OS) has been developed by engineering grain (TX430) and sweet (Ramada) genetic backgrounds to accumulate triacylglycerols (TAG) in vegetative tissues as an energy-dense feedstock for sustainable aviation fuel (SAF) and other biofuels. This study evaluated two TX430 OS lines (TxHO-2, TxHO-3) and two Ramada OS lines (RmHO-1, RmHO-2) alongside wild-type (WT) lines in NE and IL over 2 years (2023–2024) to quantify genotype × environment effects on agronomic performance and TAG accumulation. Across four environments, TX430 OS lines showed average TAG concentrations of 15.0 g kg −1 in leaves and 12.8 g kg −1 in stems, approximately 19-fold higher than WT. Ramada OS lines accumulated 26.1 g kg −1 in leaves and 12.3 g kg −1 in stems, approximately 25-fold and 13-fold increases over WT, respectively. OS lines in TX430 exhibited an 18% reduction in biomass (8.4 vs. 9.9 Mg ha −1 for WT), while Ramada OS lines had similar WT biomass (18.3 vs. 19.9 Mg ha −1 for WT). Among TX430 OS lines, TxHO-2 achieved the highest TAG yield (190 kg ha −1 ), while RmHO-1 led the Ramada lines (335 kg ha −1 ) due to higher biomass and similar TAG concentration. Enhanced TAG accumulation increased N, P, and K removal in TX430 lines but not in Ramada lines. Structural carbohydrate and ash concentration were unaffected. Overall, results confirm vegetative lipid accumulation as a viable strategy for high-biomass sorghum, supporting its potential as a dual-purpose feedstock for SAF. Future work should focus on minimizing biomass yield penalties and improving nutrient use efficiency in oil sorghum systems.

60 APPLIED LIFE SCIENCES↗
DOE OSTI2020

Prediction of Research/Motor Octane Number and Octane Sensitivity Using Artificial Neural Networks

Octane sensitivity (OS), dfined as the research octane number (RON) minus the motor octane number (MON) of a given fuel, has gained interest among researchers due to its apparent ffect on knocking conditions in internal combustion engines. Compounds with a high OS enable higher efficiencies, especially with respect to advanced compression ignition engines. RON/MON must be experimentally tested to determine OS; however, the experimental methods utilized require a substantial amount of time, a significant monetary investment, and specialized equipment. To this end, predictive computational models trained with existing experimental data and molecular properties would allow for the preemptive screening of compounds prior to performing these experiments. The present work proposes two methods for predicting the OS of a given compound: using artficial neural networks (ANNs) trained with quantitative structure-property relationship (QSPR) descriptors to predict RON and MON individually to compute OS from RON/MON predictions (derived octane sensitivity, dOS), and using an ANN trained with QSPR descriptors to directly predict OS. ANNs trained to predict RON and MON achieved test set root-mean-square errors (RMSEs) of 10.499 and 7.551 respectively. dOS calculations were found to have a test set RMSE of 6.432 while predicting OS directly resulted in a test set RMSE of 7.019, showing it is more bene cial to obtain OS from RON/MON predictions than predicting it directly. Furthermore, relationships between individual QSPR descriptors and RON/MON/OS are discussed, highlighting correlations between specfic molecular features and these properties.

09 BIOMASS FUELS↗
DOE OSTI2020

Materials Data on Os2(CO)7 by Materials Project

Os(CO)3Os(CO)4 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of eight Os(CO)3 clusters and eight Os(CO)4 clusters. In each Os(CO)3 cluster, Os2- is bonded in a 3-coordinate geometry to three C+2.57+ atoms. There are a spread of Os–C bond distances ranging from 1.88–1.92 Å. There are three inequivalent C+2.57+ sites. In the first C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In each Os(CO)4 cluster, Os2- is bonded in a rectangular see-saw-like geometry to four C+2.57+ atoms. There is two shorter (1.92 Å) and two longer (1.98 Å) Os–C bond length. There are four inequivalent C+2.57+ sites. In the first C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.57+ site, C+2.57+ is bonded in a distorted single-bond geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.57+ site, C+2.57+ is bonded in a distorted single-bond geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the fourth C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y6OsI10 by Materials Project

Y6OsI10 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Y sites. In the first Y site, Y is bonded to one Os and five I atoms to form a mixture of distorted corner and edge-sharing YOsI5 octahedra. The corner-sharing octahedra tilt angles range from 0–10°. The Y–Os bond length is 2.70 Å. There are a spread of Y–I bond distances ranging from 3.11–3.37 Å. In the second Y site, Y is bonded to one Os and five I atoms to form a mixture of distorted corner and edge-sharing YOsI5 octahedra. The corner-sharing octahedra tilt angles range from 0–10°. The Y–Os bond length is 2.70 Å. There are a spread of Y–I bond distances ranging from 3.06–3.40 Å. In the third Y site, Y is bonded to one Os and five I atoms to form a mixture of corner and edge-sharing YOsI5 octahedra. The corner-sharing octahedra tilt angles range from 0–5°. The Y–Os bond length is 2.78 Å. There are a spread of Y–I bond distances ranging from 3.03–3.32 Å. Os is bonded in an octahedral geometry to six Y atoms. There are five inequivalent I sites. In the first I site, I is bonded in a distorted L-shaped geometry to two Y atoms. In the second I site, I is bonded in a distorted T-shaped geometry to three Y atoms. In the third I site, I is bonded in a distorted T-shaped geometry to three Y atoms. In the fourth I site, I is bonded in a distorted see-saw-like geometry to four Y atoms. In the fifth I site, I is bonded in a 3-coordinate geometry to three Y atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H2Os3(CO)10 by Materials Project

H2Os3(CO)10 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Os(CO)4 clusters and two OsH(CO)3 clusters. In each Os(CO)4 cluster, Os2- is bonded in a distorted see-saw-like geometry to four C+2.40+ atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Os–C bond length. There are four inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In each OsH(CO)3 cluster, there are two inequivalent Os2- sites. In the first Os2- site, Os2- is bonded to three C+2.40+ and two H1+ atoms to form distorted edge-sharing OsH2C3 square pyramids. There is two shorter (1.90 Å) and one longer (1.93 Å) Os–C bond length. Both Os–H bond lengths are 1.86 Å. In the second Os2- site, Os2- is bonded to three C+2.40+ and two H1+ atoms to form distorted edge-sharing OsH2C3 square pyramids. There are a spread of Os–C bond distances ranging from 1.90–1.92 Å. There is one shorter (1.85 Å) and one longer (1.86 Å) Os–H bond length. There are six inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in an L-shaped geometry to two Os2- atoms. In the second H1+ site, H1+ is bonded in an L-shaped geometry to two Os2- atoms. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom.

36 MATERIALS SCIENCE↗