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DOE OSTI2020

Materials Data on Th6Mg23 by Materials Project

Mg23Th6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a 1-coordinate geometry to ten Mg and three equivalent Th atoms. There are a spread of Mg–Mg bond distances ranging from 2.97–3.43 Å. All Mg–Th bond lengths are 3.71 Å. In the second Mg site, Mg is bonded to nine Mg and three equivalent Th atoms to form a mixture of distorted corner and face-sharing MgTh3Mg9 cuboctahedra. There are three shorter (2.92 Å) and three longer (3.24 Å) Mg–Mg bond lengths. All Mg–Th bond lengths are 3.45 Å. In the third Mg site, Mg is bonded to eight Mg and four equivalent Th atoms to form distorted MgTh4Mg8 cuboctahedra that share corners with twelve MgTh4Mg8 cuboctahedra and faces with sixteen MgTh3Mg9 cuboctahedra. All Mg–Th bond lengths are 3.70 Å. In the fourth Mg site, Mg is bonded in a body-centered cubic geometry to eight equivalent Mg atoms. Th is bonded in a 4-coordinate geometry to twelve Mg and four equivalent Th atoms. All Th–Th bond lengths are 3.72 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThURe4 by Materials Project

UThRe4 is Hexagonal Laves-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. U is bonded in a 12-coordinate geometry to three equivalent U, one Th, and twelve Re atoms. All U–U bond lengths are 3.33 Å. The U–Th bond length is 3.30 Å. There are a spread of U–Re bond distances ranging from 3.12–3.20 Å. Th is bonded in a 12-coordinate geometry to one U, three equivalent Th, and twelve Re atoms. There are one shorter (3.36 Å) and two longer (3.37 Å) Th–Th bond lengths. There are a spread of Th–Re bond distances ranging from 3.19–3.24 Å. There are four inequivalent Re sites. In the first Re site, Re is bonded to six equivalent Th and six Re atoms to form ReTh6Re6 cuboctahedra that share corners with twelve ReTh3U3Re6 cuboctahedra, edges with six equivalent ReTh6Re6 cuboctahedra, and faces with twenty ReU6Re6 cuboctahedra. There are two shorter (2.77 Å) and four longer (2.78 Å) Re–Re bond lengths. In the second Re site, Re is bonded to six equivalent U and six Re atoms to form ReU6Re6 cuboctahedra that share corners with twelve ReTh3U3Re6 cuboctahedra, edges with six equivalent ReU6Re6 cuboctahedra, and faces with twenty ReTh6Re6 cuboctahedra. There are four shorter (2.70 Å) and two longer (2.71 Å) Re–Re bond lengths. In the third Re site, Re is bonded to three equivalent U, three equivalent Th, and six Re atoms to form ReTh3U3Re6 cuboctahedra that share corners with eighteen ReTh6Re6 cuboctahedra, edges with six equivalent ReTh3U3Re6 cuboctahedra, and faces with eighteen ReTh6Re6 cuboctahedra. There are a spread of Re–Re bond distances ranging from 2.66–2.80 Å. In the fourth Re site, Re is bonded to three equivalent U, three equivalent Th, and six Re atoms to form ReTh3U3Re6 cuboctahedra that share corners with eighteen ReTh6Re6 cuboctahedra, edges with six equivalent ReTh3U3Re6 cuboctahedra, and faces with eighteen ReTh6Re6 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThMo2O11 by Materials Project

ThMo2O9O2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four oxygen molecules and one ThMo2O9 framework. In the ThMo2O9 framework, Th is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Th–O bond distances ranging from 2.37–2.62 Å. There are two inequivalent Mo sites. In the first Mo site, Mo is bonded in a tetrahedral geometry to four O atoms. There is three shorter (1.79 Å) and one longer (1.82 Å) Mo–O bond length. In the second Mo site, Mo is bonded in a distorted tetrahedral geometry to five O atoms. There are a spread of Mo–O bond distances ranging from 1.79–2.50 Å. There are nine inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Th and one Mo atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Th and one Mo atom. In the third O site, O is bonded in a bent 150 degrees geometry to one Th and one Mo atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Th and one Mo atom. In the fifth O site, O is bonded in a single-bond geometry to one Mo atom. In the sixth O site, O is bonded in a 2-coordinate geometry to one Th and one Mo atom. In the seventh O site, O is bonded in a distorted bent 150 degrees geometry to one Th and one Mo atom. In the eighth O site, O is bonded in a linear geometry to one Th and one Mo atom. In the ninth O site, O is bonded in a bent 150 degrees geometry to one Th and one Mo atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Th4UTe5 by Materials Project

UTh4Te5 is Heusler-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. U is bonded in a body-centered cubic geometry to eight equivalent Te atoms. All U–Te bond lengths are 3.31 Å. There are two inequivalent Th sites. In the first Th site, Th is bonded in a body-centered cubic geometry to eight Te atoms. There are four shorter (3.32 Å) and four longer (3.33 Å) Th–Te bond lengths. In the second Th site, Th is bonded in a body-centered cubic geometry to eight Te atoms. All Th–Te bond lengths are 3.32 Å. There are three inequivalent Te sites. In the first Te site, Te is bonded in a body-centered cubic geometry to four equivalent U and four equivalent Th atoms. In the second Te site, Te is bonded in a body-centered cubic geometry to eight Th atoms. In the third Te site, Te is bonded in a body-centered cubic geometry to eight equivalent Th atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Th3In5 by Materials Project

Th3In5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded in a 9-coordinate geometry to nine In atoms. There are a spread of Th–In bond distances ranging from 3.19–3.61 Å. In the second Th site, Th is bonded in a 10-coordinate geometry to ten In atoms. There are a spread of Th–In bond distances ranging from 3.29–3.53 Å. There are three inequivalent In sites. In the first In site, In is bonded in a 5-coordinate geometry to five Th and four In atoms. There are two shorter (3.10 Å) and two longer (3.20 Å) In–In bond lengths. In the second In site, In is bonded in a 10-coordinate geometry to six Th and four In atoms. There are two shorter (3.01 Å) and one longer (3.36 Å) In–In bond lengths. In the third In site, In is bonded in a 9-coordinate geometry to six Th and three In atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y3Th3Mn23 by Materials Project

Th3Y3Mn23 crystallizes in the trigonal R3m space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to twelve Mn atoms. There are a spread of Th–Mn bond distances ranging from 2.92–3.14 Å. Y is bonded in a 12-coordinate geometry to twelve Mn atoms. There are a spread of Y–Mn bond distances ranging from 2.95–3.08 Å. There are eleven inequivalent Mn sites. In the first Mn site, Mn is bonded in a 10-coordinate geometry to two equivalent Th, one Y, and ten Mn atoms. There are a spread of Mn–Mn bond distances ranging from 2.60–2.98 Å. In the second Mn site, Mn is bonded to two equivalent Th, two equivalent Y, and eight Mn atoms to form a mixture of face and corner-sharing MnY2Th2Mn8 cuboctahedra. There are a spread of Mn–Mn bond distances ranging from 2.49–2.69 Å. In the third Mn site, Mn is bonded to two equivalent Th, two equivalent Y, and eight Mn atoms to form a mixture of face and corner-sharing MnY2Th2Mn8 cuboctahedra. There are a spread of Mn–Mn bond distances ranging from 2.43–2.65 Å. In the fourth Mn site, Mn is bonded to three equivalent Th and nine Mn atoms to form a mixture of face and corner-sharing MnTh3Mn9 cuboctahedra. There are three shorter (2.41 Å) and three longer (2.57 Å) Mn–Mn bond lengths. In the fifth Mn site, Mn is bonded in a distorted q6 geometry to one Th, two equivalent Y, and nine Mn atoms. There are a spread of Mn–Mn bond distances ranging from 2.48–2.62 Å. In the sixth Mn site, Mn is bonded in a distorted q6 geometry to three equivalent Y and nine Mn atoms. All Mn–Mn bond lengths are 2.48 Å. In the seventh Mn site, Mn is bonded to two equivalent Th, one Y, and nine Mn atoms to form a mixture of face and corner-sharing MnYTh2Mn9 cuboctahedra. There are two shorter (2.43 Å) and one longer (2.57 Å) Mn–Mn bond lengths. In the eighth Mn site, Mn is bonded in a body-centered cubic geometry to eight Mn atoms. There are a spread of Mn–Mn bond distances ranging from 2.51–2.64 Å. In the ninth Mn site, Mn is bonded in a 10-coordinate geometry to three equivalent Th and ten Mn atoms. In the tenth Mn site, Mn is bonded in a 10-coordinate geometry to one Th, two equivalent Y, and ten Mn atoms. The Mn–Mn bond length is 3.00 Å. In the eleventh Mn site, Mn is bonded in a 10-coordinate geometry to three equivalent Y and ten Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThMg(N3O13)2 by Materials Project

MgO8Th(NO3)6 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two MgO8 clusters and two Th(NO3)6 clusters. In each MgO8 cluster, Mg is bonded in a distorted octahedral geometry to six O atoms. There are two shorter (2.08 Å) and four longer (2.16 Å) Mg–O bond lengths. There are four inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to two O atoms. Both O–O bond lengths are 1.31 Å. In the second O site, O is bonded in a single-bond geometry to one Mg atom. In the third O site, O is bonded in an L-shaped geometry to one Mg and one O atom. In the fourth O site, O is bonded in an L-shaped geometry to one Mg and one O atom. In each Th(NO3)6 cluster, Th is bonded in a cuboctahedral geometry to twelve O atoms. There are a spread of Th–O bond distances ranging from 2.56–2.64 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 are a spread of N–O bond distances ranging from 1.22–1.30 Å. In the second N site, N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.25 Å) and two longer (1.27 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 1.23–1.29 Å. There are nine inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one Th 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 distorted single-bond geometry to one Th and one N atom. In the fourth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the fifth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the sixth O site, O is bonded in a single-bond geometry to one N atom. In the seventh O site, O is bonded in a distorted single-bond geometry to one Th and one N atom. In the eighth O site, O is bonded in a single-bond geometry to one N atom. In the ninth O site, O is bonded in a distorted single-bond geometry to one Th and one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce3Th3Si4 by Materials Project

Th3Ce3Si4 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded in a 6-coordinate geometry to six Si atoms. There are two shorter (3.07 Å) and four longer (3.13 Å) Th–Si bond lengths. In the second Th site, Th is bonded in a 6-coordinate geometry to six Si atoms. There are two shorter (3.08 Å) and four longer (3.13 Å) Th–Si bond lengths. There are two inequivalent Ce sites. In the first Ce site, Ce is bonded in a distorted rectangular see-saw-like geometry to four Si atoms. There are a spread of Ce–Si bond distances ranging from 3.09–3.15 Å. In the second Ce site, Ce is bonded in a distorted hexagonal planar geometry to six Si atoms. There are two shorter (3.05 Å) and four longer (3.12 Å) Ce–Si bond lengths. There are three inequivalent Si sites. In the first Si site, Si is bonded in a 9-coordinate geometry to six Th, two equivalent Ce, and one Si atom. The Si–Si bond length is 2.50 Å. In the second Si site, Si is bonded in a 9-coordinate geometry to four equivalent Th, four Ce, and one Si atom. In the third Si site, Si is bonded in a 9-coordinate geometry to four Th, four Ce, and one Si atom. The Si–Si bond length is 2.47 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2025

Temperature dependence of uranium and thorium partitioning in igneous zircons

Zircon is a key mineral in geochronology because of its chemical and physical durability and tendency to incorporate radioactive trace elements such as U and Th. Quantifying the partitioning of the actinide elements is critical to constrain initial non-secular equilibrium amounts of 230 Th in zircon. An excess or deficit of 206 Pb will be produced from such an initial excess/deficit of 230 Th from the secular equilibrium condition, which influences the calculated 206 Pb/ 238 U age (Schärer, 1984, Mattinson, 1973). However, there is no standard way to calculate Th/U partitioning ratios when applying age corrections to young igneous zircon, making uncertainties hard to estimate. To better understand U and Th partitioning of zircon/melt that is the cornerstone of the secular disequilibrium correction, zircon was synthesized in one-atmosphere experiments using basaltic andesite, andesite, and rhyolite starting materials, doped with Zr, U, and Th. Different experimental temperatures and oxygen fugacity conditions (ΔQFM−4 to ΔQFM+4) were explored to examine their effects on U and Th partitioning. In addition, we specifically quantify the effects of sector zoning, fractional crystallization, and melt composition on U and Th partitioning. By combining experimental and natural zircon data, we find that temperature has the primary control on the partitioning of U and Th in the zircon and calibrate an inverse relationship between these partition coefficients and crystallization temperatures. The calibrated equation can be applied to the 230 Th correction for an improvement in the accuracy of Th-corrected 206 Pb/ 238 U dates when the zircon crystallization temperature is known.

206Pb/238U dating↗
DOE OSTI2022

Quantile-specific heritability of plasma fibrinogen concentrations

Fibrinogen is a moderately heritable blood protein showing different genetic effects by sex, race, smoking status, pollution exposure, and disease status. These interactions may be explained in part by “quantile-dependent expressivity”, where the effect size of a genetic variant depends upon whether the phenotype (e.g. plasma fibrinogen concentration) is high or low relative to its distribution. Determine whether fibrinogen heritability (h 2 ) is quantile-specific, and whether quantile-specific h 2 could account for fibrinogen gene-environment interactions. Plasma fibrinogen concentrations from 5689 offspring-parent pairs and 1932 sibships from the Framingham Heart Study were analyzed. Quantile-specific heritability from offspring-parent (β OP , h 2 = 2β OP /(1+r spouse )) and full-sib regression slopes (β FS , h 2 = {(1+8r spouse β FS ) 0.05 –1}/(2r spouse )) were robustly estimated by quantile regression with nonparametric significance assigned from 1000 bootstrap samples. Quantile-specific h 2 (±SE) increased with increasing percentiles of the offspring’s age- and sex-adjusted fibrinogen distribution when estimated from β OP (P trend = 5.5x10 -6 ): 0.30±0.05 at the 10 th , 0.37±0.04 at the 25 th , 0.48±0.05 at the 50 th , 0.61±0.06 at the 75 th , and 0.65±0.08 at the 90 th percentile, and when estimated from β FS (P trend = 0.008): 0.28±0.04 at the 10 th , 0.31±0.04 at the 25 th , 0.36±0.03 at the 50 th , 0.41±0.05 at the 75 th , and 0.50±0.06 at the 90 th percentile. The larger genetic effect at higher average fibrinogen concentrations may contribute to fibrinogen’s greater heritability in women than men and in Blacks than Whites, and greater increase from smoking and air pollution for the FGB -455G>A A-allele. It may also explain greater fibrinogen differences between: 1) FGB -455G>A genotypes during acute phase reactions than usual conditions, 2) GTSM1 and IL-6 -572C>G genotypes in smokers than nonsmokers, 3) FGB -148C>T genotypes in untreated than treated diabetics, and LPL PvuII genotypes in macroalbuminuric than normoalbuminuric patients. Fibrinogen heritability is quantile specific, which may explain or contribute to its gene-environment interactions. The analyses do not disprove the traditional gene-environment interpretations of these examples, rather quantile-dependent expressivity provides an alternative explanation that warrants consideration.

59 BASIC BIOLOGICAL SCIENCES↗
DOE OSTI2020

Materials Data on Th2Co17 by Materials Project

Th2Co17 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Th is bonded in a 10-coordinate geometry to nineteen Co atoms. There are a spread of Th–Co bond distances ranging from 3.01–3.24 Å. There are seven inequivalent Co sites. In the first Co site, Co is bonded to two equivalent Th and ten Co atoms to form distorted CoTh2Co10 cuboctahedra that share corners with fourteen CoTh2Co10 cuboctahedra, edges with six CoTh3Co9 cuboctahedra, and faces with ten CoTh2Co10 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.38–2.57 Å. In the second Co site, Co is bonded to two equivalent Th and ten Co atoms to form distorted CoTh2Co10 cuboctahedra that share corners with fourteen CoTh2Co10 cuboctahedra, edges with six CoTh3Co9 cuboctahedra, and faces with ten CoTh2Co10 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.38–2.57 Å. In the third Co site, Co is bonded in a 12-coordinate geometry to two equivalent Th and ten Co atoms. There are a spread of Co–Co bond distances ranging from 2.39–2.64 Å. In the fourth Co site, Co is bonded to three equivalent Th and nine Co atoms to form a mixture of corner, edge, and face-sharing CoTh3Co9 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.48–2.60 Å. In the fifth Co site, Co is bonded in a 2-coordinate geometry to one Th and thirteen Co atoms. There are a spread of Co–Co bond distances ranging from 2.31–2.66 Å. In the sixth Co site, Co is bonded in a 12-coordinate geometry to two equivalent Th and ten Co atoms. There are a spread of Co–Co bond distances ranging from 2.39–2.60 Å. In the seventh Co site, Co is bonded to three equivalent Th and nine Co atoms to form a mixture of corner, edge, and face-sharing CoTh3Co9 cuboctahedra. The Co–Co bond length is 2.47 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThGa by Materials Project

ThGa crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded in a 7-coordinate geometry to seven Ga atoms. There are a spread of Th–Ga bond distances ranging from 3.13–3.31 Å. In the second Th site, Th is bonded in a 7-coordinate geometry to seven Ga atoms. There are a spread of Th–Ga bond distances ranging from 3.12–3.31 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 9-coordinate geometry to seven Th and two equivalent Ga atoms. Both Ga–Ga bond lengths are 2.65 Å. In the second Ga site, Ga is bonded in a 9-coordinate geometry to seven Th and two equivalent Ga atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Th5Sn4 by Materials Project

Th5Sn4 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded to seven Sn atoms to form a mixture of distorted corner, edge, and face-sharing ThSn7 pentagonal bipyramids. There are a spread of Th–Sn bond distances ranging from 3.17–3.44 Å. In the second Th site, Th is bonded in a 6-coordinate geometry to six equivalent Sn atoms. All Th–Sn bond lengths are 3.45 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to nine Th atoms. In the second Sn site, Sn is bonded to six equivalent Th atoms to form distorted face-sharing SnTh6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThPd3 by Materials Project

ThPd3 is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded to twelve Pd atoms to form ThPd12 cuboctahedra that share corners with six equivalent ThPd12 cuboctahedra, edges with twelve equivalent PdTh4Pd8 cuboctahedra, faces with six equivalent PdTh4Pd8 cuboctahedra, and faces with eight ThPd12 cuboctahedra. There are six shorter (2.96 Å) and six longer (3.06 Å) Th–Pd bond lengths. In the second Th site, Th is bonded to twelve Pd atoms to form ThPd12 cuboctahedra that share corners with twelve equivalent ThPd12 cuboctahedra, edges with twelve equivalent PdTh4Pd8 cuboctahedra, faces with six equivalent ThPd12 cuboctahedra, and faces with six equivalent PdTh4Pd8 cuboctahedra. There are six shorter (2.96 Å) and six longer (3.02 Å) Th–Pd bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded to four Th and eight Pd atoms to form distorted PdTh4Pd8 cuboctahedra that share corners with twelve equivalent PdTh4Pd8 cuboctahedra, edges with eight ThPd12 cuboctahedra, edges with eight equivalent PdTh4Pd8 cuboctahedra, faces with four ThPd12 cuboctahedra, and faces with four equivalent PdTh4Pd8 cuboctahedra. There are a spread of Pd–Pd bond distances ranging from 2.84–3.08 Å. In the second Pd site, Pd is bonded in a distorted square co-planar geometry to four Th and four equivalent Pd atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThNi by Materials Project

ThNi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Th sites. In the first Th site, Th is bonded in a 7-coordinate geometry to seven Ni atoms. There are a spread of Th–Ni bond distances ranging from 2.91–3.05 Å. In the second Th site, Th is bonded in a 7-coordinate geometry to seven Ni atoms. There are a spread of Th–Ni bond distances ranging from 2.91–3.06 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 9-coordinate geometry to seven Th and two equivalent Ni atoms. Both Ni–Ni bond lengths are 2.71 Å. In the second Ni site, Ni is bonded in a 9-coordinate geometry to seven Th and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbThRe4 by Materials Project

ThTbRe4 is Cubic Laves-derived structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to three equivalent Th, one Tb, and twelve Re atoms. All Th–Th bond lengths are 3.33 Å. The Th–Tb bond length is 3.46 Å. There are a spread of Th–Re bond distances ranging from 3.18–3.30 Å. Tb is bonded in a 12-coordinate geometry to one Th, three equivalent Tb, and twelve Re atoms. All Tb–Tb bond lengths are 3.33 Å. All Tb–Re bond lengths are 3.18 Å. There are three inequivalent Re sites. In the first Re site, Re is bonded to six equivalent Tb and six equivalent Re atoms to form ReTb6Re6 cuboctahedra that share corners with twelve equivalent ReTb3Th3Re6 cuboctahedra, edges with six equivalent ReTb6Re6 cuboctahedra, and faces with twenty ReTh6Re6 cuboctahedra. All Re–Re bond lengths are 2.74 Å. In the second Re site, Re is bonded to six equivalent Th and six equivalent Re atoms to form ReTh6Re6 cuboctahedra that share corners with twelve equivalent ReTb3Th3Re6 cuboctahedra, edges with six equivalent ReTh6Re6 cuboctahedra, and faces with twenty ReTb6Re6 cuboctahedra. All Re–Re bond lengths are 2.85 Å. In the third Re site, Re is bonded to three equivalent Th, three equivalent Tb, and six Re atoms to form ReTb3Th3Re6 cuboctahedra that share corners with eighteen ReTb6Re6 cuboctahedra, edges with six equivalent ReTb3Th3Re6 cuboctahedra, and faces with eighteen ReTb6Re6 cuboctahedra. There are two shorter (2.66 Å) and two longer (2.77 Å) Re–Re bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ThSe(IO7)2 by Materials Project

ThSe(O7I)2 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one ThSe(O7I)2 sheet oriented in the (1, 0, 0) direction. Th is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Th–O bond distances ranging from 2.27–2.71 Å. Se is bonded in a tetrahedral geometry to four O atoms. There are a spread of Se–O bond distances ranging from 1.62–1.72 Å. There are fourteen inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Th and one I atom. The O–I bond length is 1.88 Å. In the second O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.27 Å. In the third O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.78 Å. In the fourth O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.77 Å. In the fifth O site, O is bonded in a bent 150 degrees geometry to one Th and one Se atom. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Th and one Se atom. In the seventh O site, O is bonded in a bent 120 degrees geometry to two O atoms. The O–O bond length is 1.31 Å. In the eighth O site, O is bonded in a distorted bent 120 degrees geometry to one Th and one I atom. The O–I bond length is 1.83 Å. In the ninth O site, O is bonded in a single-bond geometry to one Se atom. In the tenth O site, O is bonded in a bent 150 degrees geometry to one Th and one I atom. The O–I bond length is 1.81 Å. In the eleventh O site, O is bonded in a distorted single-bond geometry to one Se and one I atom. The O–I bond length is 2.55 Å. In the twelfth O site, O is bonded in a single-bond geometry to one I atom. The O–I bond length is 1.79 Å. In the thirteenth O site, O is bonded in a water-like geometry to one Th and one O atom. In the fourteenth O site, O is bonded in a bent 150 degrees geometry to one Th and one I atom. The O–I bond length is 1.89 Å. There are two inequivalent I sites. In the first I site, I is bonded in a tetrahedral geometry to four O atoms. In the second I site, I is bonded in a 4-coordinate geometry to four O atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ErThRe4 by Materials Project

ThErRe4 is Cubic Laves-derived structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to three equivalent Th, one Er, and twelve Re atoms. All Th–Th bond lengths are 3.31 Å. The Th–Er bond length is 3.46 Å. There are a spread of Th–Re bond distances ranging from 3.16–3.30 Å. Er is bonded in a 12-coordinate geometry to one Th and twelve Re atoms. There are nine shorter (3.16 Å) and three longer (3.17 Å) Er–Re bond lengths. There are three inequivalent Re sites. In the first Re site, Re is bonded to six equivalent Er and six equivalent Re atoms to form ReEr6Re6 cuboctahedra that share corners with twelve equivalent ReEr3Th3Re6 cuboctahedra, edges with six equivalent ReEr6Re6 cuboctahedra, and faces with twenty ReTh6Re6 cuboctahedra. All Re–Re bond lengths are 2.72 Å. In the second Re site, Re is bonded to six equivalent Th and six equivalent Re atoms to form ReTh6Re6 cuboctahedra that share corners with twelve equivalent ReEr3Th3Re6 cuboctahedra, edges with six equivalent ReTh6Re6 cuboctahedra, and faces with twenty ReEr6Re6 cuboctahedra. All Re–Re bond lengths are 2.86 Å. In the third Re site, Re is bonded to three equivalent Th, three equivalent Er, and six Re atoms to form ReEr3Th3Re6 cuboctahedra that share corners with eighteen ReEr6Re6 cuboctahedra, edges with six equivalent ReEr3Th3Re6 cuboctahedra, and faces with eighteen ReEr6Re6 cuboctahedra. There are two shorter (2.64 Å) and two longer (2.75 Å) Re–Re bond lengths.

36 MATERIALS SCIENCE↗