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DOE OSTI2020

Materials Data on YNb2NO5 by Materials Project

YNb2NO5 is Brookite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 7-coordinate geometry to two N3- and five O2- atoms. There are one shorter (2.30 Å) and one longer (2.35 Å) Y–N bond lengths. There are a spread of Y–O bond distances ranging from 2.27–2.81 Å. In the second Y3+ site, Y3+ is bonded in a 6-coordinate geometry to one N3- and five O2- atoms. The Y–N bond length is 2.29 Å. There are a spread of Y–O bond distances ranging from 2.28–2.44 Å. In the third Y3+ site, Y3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Y–O bond distances ranging from 2.26–2.42 Å. In the fourth Y3+ site, Y3+ is bonded in a 6-coordinate geometry to seven O2- atoms. There are a spread of Y–O bond distances ranging from 2.24–2.72 Å. There are eight inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to two N3- and four O2- atoms to form distorted corner-sharing NbN2O4 octahedra. The corner-sharing octahedral tilt angles are 53°. There are one shorter (1.92 Å) and one longer (2.25 Å) Nb–N bond lengths. There are a spread of Nb–O bond distances ranging from 1.92–2.28 Å. In the second Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to one N3- and five O2- atoms. The Nb–N bond length is 2.06 Å. There are a spread of Nb–O bond distances ranging from 1.86–2.45 Å. In the third Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to one N3- and five O2- atoms. The Nb–N bond length is 2.05 Å. There are a spread of Nb–O bond distances ranging from 1.87–2.44 Å. In the fourth Nb5+ site, Nb5+ is bonded to two N3- and four O2- atoms to form distorted corner-sharing NbN2O4 octahedra. The corner-sharing octahedral tilt angles are 53°. There are one shorter (1.90 Å) and one longer (2.23 Å) Nb–N bond lengths. There are a spread of Nb–O bond distances ranging from 1.94–2.31 Å. In the fifth Nb5+ site, Nb5+ is bonded in a distorted octahedral geometry to six O2- atoms. There are a spread of Nb–O bond distances ranging from 1.88–2.26 Å. In the sixth Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Nb–O bond distances ranging from 1.87–2.40 Å. In the seventh Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to one N3- and five O2- atoms. The Nb–N bond length is 1.89 Å. There are a spread of Nb–O bond distances ranging from 1.87–2.45 Å. In the eighth Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to two N3- and four O2- atoms. There is one shorter (1.82 Å) and one longer (2.07 Å) Nb–N bond length. There are a spread of Nb–O bond distances ranging from 2.01–2.54 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the second N3- site, N3- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the third N3- site, N3- is bonded in a distorted trigonal planar geometry to one Y3+ and two Nb5+ atoms. In the fourth N3- site, N3- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom. There are twenty inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Y3+ and two Nb5+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and two Nb5+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and two Nb5+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Y3+ and two Nb5+ atoms. In the ninth O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Y3+ and one Nb5+ atom. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Y3+ and two Nb5+ atoms. In the fourteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Y3+ and two Nb5+ atoms. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the seventeenth O2- site, O2- is bonded in a 1-coordinate geometry to three Nb5+ atoms. In the eighteenth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb5+ atoms. In the nineteenth O2- site, O2- is bonded in a trigonal planar geometry to one Y3+ and two Nb5+ atoms. In the twentieth O2- site, O2- is bonded in a 3-coordinate geometry to two Y3+ and one Nb5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y2Al3Si2 by Materials Project

Y2Al3Si2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Y is bonded in a 12-coordinate geometry to six Al and five equivalent Si atoms. There are a spread of Y–Al bond distances ranging from 3.03–3.25 Å. There are a spread of Y–Si bond distances ranging from 2.89–3.01 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a distorted water-like geometry to four equivalent Y and two equivalent Si atoms. Both Al–Si bond lengths are 2.61 Å. In the second Al site, Al is bonded in a 6-coordinate geometry to four equivalent Y and two equivalent Si atoms. Both Al–Si bond lengths are 2.73 Å. Si is bonded in a 9-coordinate geometry to five equivalent Y, three Al, and one Si atom. The Si–Si bond length is 2.39 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YZr by Materials Project

ZrY crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Y is bonded to six equivalent Y and six equivalent Zr atoms to form YY6Zr6 cuboctahedra that share corners with eighteen equivalent YY6Zr6 cuboctahedra, edges with six equivalent YY6Zr6 cuboctahedra, edges with twelve equivalent ZrY6Zr6 cuboctahedra, faces with eight equivalent YY6Zr6 cuboctahedra, and faces with twelve equivalent ZrY6Zr6 cuboctahedra. All Y–Y bond lengths are 3.42 Å. All Y–Zr bond lengths are 3.35 Å. Zr is bonded to six equivalent Y and six equivalent Zr atoms to form ZrY6Zr6 cuboctahedra that share corners with eighteen equivalent ZrY6Zr6 cuboctahedra, edges with six equivalent ZrY6Zr6 cuboctahedra, edges with twelve equivalent YY6Zr6 cuboctahedra, faces with eight equivalent ZrY6Zr6 cuboctahedra, and faces with twelve equivalent YY6Zr6 cuboctahedra. All Zr–Zr bond lengths are 3.42 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdY3 by Materials Project

NdY3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Nd is bonded to twelve equivalent Y atoms to form NdY12 cuboctahedra that share corners with twelve equivalent NdY12 cuboctahedra, edges with twenty-four equivalent YNd4Y8 cuboctahedra, faces with six equivalent NdY12 cuboctahedra, and faces with twelve equivalent YNd4Y8 cuboctahedra. All Nd–Y bond lengths are 3.61 Å. Y is bonded to four equivalent Nd and eight equivalent Y atoms to form YNd4Y8 cuboctahedra that share corners with twelve equivalent YNd4Y8 cuboctahedra, edges with eight equivalent NdY12 cuboctahedra, edges with sixteen equivalent YNd4Y8 cuboctahedra, faces with four equivalent NdY12 cuboctahedra, and faces with fourteen equivalent YNd4Y8 cuboctahedra. All Y–Y bond lengths are 3.61 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmY3 by Materials Project

SmY3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sm is bonded to twelve equivalent Y atoms to form SmY12 cuboctahedra that share corners with six equivalent SmY12 cuboctahedra, corners with twelve equivalent YSm4Y8 cuboctahedra, edges with eighteen equivalent YSm4Y8 cuboctahedra, faces with eight equivalent SmY12 cuboctahedra, and faces with twelve equivalent YSm4Y8 cuboctahedra. There are six shorter (3.57 Å) and six longer (3.66 Å) Sm–Y bond lengths. Y is bonded to four equivalent Sm and eight equivalent Y atoms to form YSm4Y8 cuboctahedra that share corners with four equivalent SmY12 cuboctahedra, corners with fourteen equivalent YSm4Y8 cuboctahedra, edges with six equivalent SmY12 cuboctahedra, edges with twelve equivalent YSm4Y8 cuboctahedra, faces with four equivalent SmY12 cuboctahedra, and faces with sixteen equivalent YSm4Y8 cuboctahedra. There are a spread of Y–Y bond distances ranging from 3.56–3.66 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y3Tm by Materials Project

TmY3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Tm is bonded to twelve equivalent Y atoms to form TmY12 cuboctahedra that share corners with six equivalent TmY12 cuboctahedra, corners with twelve equivalent YY8Tm4 cuboctahedra, edges with eighteen equivalent YY8Tm4 cuboctahedra, faces with eight equivalent TmY12 cuboctahedra, and faces with twelve equivalent YY8Tm4 cuboctahedra. There are six shorter (3.54 Å) and six longer (3.62 Å) Tm–Y bond lengths. Y is bonded to four equivalent Tm and eight equivalent Y atoms to form YY8Tm4 cuboctahedra that share corners with four equivalent TmY12 cuboctahedra, corners with fourteen equivalent YY8Tm4 cuboctahedra, edges with six equivalent TmY12 cuboctahedra, edges with twelve equivalent YY8Tm4 cuboctahedra, faces with four equivalent TmY12 cuboctahedra, and faces with sixteen equivalent YY8Tm4 cuboctahedra. There are a spread of Y–Y bond distances ranging from 3.55–3.64 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y3Th by Materials Project

ThY3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Th is bonded to twelve equivalent Y atoms to form ThY12 cuboctahedra that share corners with six equivalent ThY12 cuboctahedra, corners with twelve equivalent YY8Th4 cuboctahedra, edges with eighteen equivalent YY8Th4 cuboctahedra, faces with eight equivalent ThY12 cuboctahedra, and faces with twelve equivalent YY8Th4 cuboctahedra. There are six shorter (3.57 Å) and six longer (3.62 Å) Th–Y bond lengths. Y is bonded to four equivalent Th and eight equivalent Y atoms to form YY8Th4 cuboctahedra that share corners with four equivalent ThY12 cuboctahedra, corners with fourteen equivalent YY8Th4 cuboctahedra, edges with six equivalent ThY12 cuboctahedra, edges with twelve equivalent YY8Th4 cuboctahedra, faces with four equivalent ThY12 cuboctahedra, and faces with sixteen equivalent YY8Th4 cuboctahedra. There are six shorter (3.59 Å) and two longer (3.65 Å) Y–Y bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y3Sn by Materials Project

Y3Sn is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Y is bonded to eight equivalent Y and four equivalent Sn atoms to form distorted YY8Sn4 cuboctahedra that share corners with four equivalent SnY12 cuboctahedra, corners with fourteen equivalent YY8Sn4 cuboctahedra, edges with six equivalent SnY12 cuboctahedra, edges with twelve equivalent YY8Sn4 cuboctahedra, faces with four equivalent SnY12 cuboctahedra, and faces with sixteen equivalent YY8Sn4 cuboctahedra. There are a spread of Y–Y bond distances ranging from 3.35–3.53 Å. There are two shorter (3.40 Å) and two longer (3.44 Å) Y–Sn bond lengths. Sn is bonded to twelve equivalent Y atoms to form SnY12 cuboctahedra that share corners with six equivalent SnY12 cuboctahedra, corners with twelve equivalent YY8Sn4 cuboctahedra, edges with eighteen equivalent YY8Sn4 cuboctahedra, faces with eight equivalent SnY12 cuboctahedra, and faces with twelve equivalent YY8Sn4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeY3 by Materials Project

CeY3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ce is bonded to twelve equivalent Y atoms to form CeY12 cuboctahedra that share corners with twelve equivalent CeY12 cuboctahedra, edges with twenty-four equivalent YCe4Y8 cuboctahedra, faces with six equivalent CeY12 cuboctahedra, and faces with twelve equivalent YCe4Y8 cuboctahedra. All Ce–Y bond lengths are 3.58 Å. Y is bonded to four equivalent Ce and eight equivalent Y atoms to form YCe4Y8 cuboctahedra that share corners with twelve equivalent YCe4Y8 cuboctahedra, edges with eight equivalent CeY12 cuboctahedra, edges with sixteen equivalent YCe4Y8 cuboctahedra, faces with four equivalent CeY12 cuboctahedra, and faces with fourteen equivalent YCe4Y8 cuboctahedra. All Y–Y bond lengths are 3.58 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsY by Materials Project

CsY is alpha Samarium-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Cs is bonded to six equivalent Cs and six equivalent Y atoms to form CsCs6Y6 cuboctahedra that share corners with eighteen equivalent CsCs6Y6 cuboctahedra, edges with six equivalent CsCs6Y6 cuboctahedra, edges with twelve equivalent YCs6Y6 cuboctahedra, faces with eight equivalent CsCs6Y6 cuboctahedra, and faces with twelve equivalent YCs6Y6 cuboctahedra. All Cs–Cs bond lengths are 3.84 Å. All Cs–Y bond lengths are 4.36 Å. Y is bonded to six equivalent Cs and six equivalent Y atoms to form YCs6Y6 cuboctahedra that share corners with eighteen equivalent YCs6Y6 cuboctahedra, edges with six equivalent YCs6Y6 cuboctahedra, edges with twelve equivalent CsCs6Y6 cuboctahedra, faces with eight equivalent YCs6Y6 cuboctahedra, and faces with twelve equivalent CsCs6Y6 cuboctahedra. All Y–Y bond lengths are 3.84 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeY3 by Materials Project

CeY3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ce is bonded to twelve equivalent Y atoms to form CeY12 cuboctahedra that share corners with six equivalent CeY12 cuboctahedra, corners with twelve equivalent YCe4Y8 cuboctahedra, edges with eighteen equivalent YCe4Y8 cuboctahedra, faces with eight equivalent CeY12 cuboctahedra, and faces with twelve equivalent YCe4Y8 cuboctahedra. There are six shorter (3.53 Å) and six longer (3.60 Å) Ce–Y bond lengths. Y is bonded to four equivalent Ce and eight equivalent Y atoms to form YCe4Y8 cuboctahedra that share corners with four equivalent CeY12 cuboctahedra, corners with fourteen equivalent YCe4Y8 cuboctahedra, edges with six equivalent CeY12 cuboctahedra, edges with twelve equivalent YCe4Y8 cuboctahedra, faces with four equivalent CeY12 cuboctahedra, and faces with sixteen equivalent YCe4Y8 cuboctahedra. There are a spread of Y–Y bond distances ranging from 3.53–3.61 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y4AlSiNO8 by Materials Project

Y4SiAlO8N crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 7-coordinate geometry to one N3- and six O2- atoms. The Y–N bond length is 2.38 Å. There are a spread of Y–O bond distances ranging from 2.28–2.82 Å. In the second Y3+ site, Y3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Y–O bond distances ranging from 2.25–2.83 Å. In the third Y3+ site, Y3+ is bonded to six O2- atoms to form YO6 octahedra that share corners with two equivalent SiNO3 tetrahedra and corners with three equivalent AlNO3 tetrahedra. There are a spread of Y–O bond distances ranging from 2.24–2.40 Å. In the fourth Y3+ site, Y3+ is bonded in a 7-coordinate geometry to one N3- and six O2- atoms. The Y–N bond length is 2.38 Å. There are a spread of Y–O bond distances ranging from 2.25–2.80 Å. Al3+ is bonded to one N3- and three O2- atoms to form AlNO3 tetrahedra that share corners with three equivalent YO6 octahedra and a cornercorner with one SiNO3 tetrahedra. The corner-sharing octahedra tilt angles range from 48–63°. The Al–N bond length is 1.82 Å. There are a spread of Al–O bond distances ranging from 1.76–1.80 Å. Si4+ is bonded to one N3- and three O2- atoms to form SiNO3 tetrahedra that share corners with two equivalent YO6 octahedra and a cornercorner with one AlNO3 tetrahedra. The corner-sharing octahedra tilt angles range from 29–52°. The Si–N bond length is 1.68 Å. There is one shorter (1.65 Å) and two longer (1.67 Å) Si–O bond length. N3- is bonded in a 4-coordinate geometry to two Y3+, one Al3+, and one Si4+ atom. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Y3+ and one Si4+ atom. In the second O2- site, O2- is bonded to three Y3+ and one Al3+ atom to form distorted corner-sharing OY3Al tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Y3+ and one Al3+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Y3+ and one Si4+ atom. In the sixth O2- site, O2- is bonded to four Y3+ atoms to form OY4 tetrahedra that share corners with four OY3Al tetrahedra and edges with two OY4 tetrahedra. In the seventh O2- site, O2- is bonded to four Y3+ atoms to form OY4 tetrahedra that share corners with five OY3Al tetrahedra and edges with two OY4 tetrahedra. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to three Y3+ and one Al3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KYF4 by Materials Project

KYF4 crystallizes in the trigonal P3_2 space group. The structure is three-dimensional. there are six inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of K–F bond distances ranging from 2.63–3.05 Å. In the second K1+ site, K1+ is bonded to eight F1- atoms to form distorted KF8 hexagonal bipyramids that share a cornercorner with one YF7 pentagonal bipyramid, edges with three KF8 hexagonal bipyramids, and edges with six YF7 pentagonal bipyramids. There are a spread of K–F bond distances ranging from 2.57–3.08 Å. In the third K1+ site, K1+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of K–F bond distances ranging from 2.60–3.15 Å. In the fourth K1+ site, K1+ is bonded to eight F1- atoms to form distorted KF8 hexagonal bipyramids that share a cornercorner with one YF7 pentagonal bipyramid, edges with three KF8 hexagonal bipyramids, and edges with six YF7 pentagonal bipyramids. There are a spread of K–F bond distances ranging from 2.62–3.05 Å. In the fifth K1+ site, K1+ is bonded to eight F1- atoms to form distorted KF8 hexagonal bipyramids that share a cornercorner with one YF7 pentagonal bipyramid, edges with three KF8 hexagonal bipyramids, and edges with six YF7 pentagonal bipyramids. There are a spread of K–F bond distances ranging from 2.62–2.93 Å. In the sixth K1+ site, K1+ is bonded to eight F1- atoms to form distorted KF8 hexagonal bipyramids that share a cornercorner with one YF7 pentagonal bipyramid, edges with three KF8 hexagonal bipyramids, and edges with six YF7 pentagonal bipyramids. There are a spread of K–F bond distances ranging from 2.64–3.11 Å. There are six inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded to seven F1- atoms to form YF7 pentagonal bipyramids that share a cornercorner with one KF8 hexagonal bipyramid, corners with three equivalent YF7 pentagonal bipyramids, edges with four KF8 hexagonal bipyramids, and an edgeedge with one YF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.18–2.32 Å. In the second Y3+ site, Y3+ is bonded to seven F1- atoms to form YF7 pentagonal bipyramids that share corners with five YF7 pentagonal bipyramids, edges with four KF8 hexagonal bipyramids, and an edgeedge with one YF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.22–2.30 Å. In the third Y3+ site, Y3+ is bonded to seven F1- atoms to form YF7 pentagonal bipyramids that share a cornercorner with one KF8 hexagonal bipyramid, corners with three equivalent YF7 pentagonal bipyramids, edges with five KF8 hexagonal bipyramids, and an edgeedge with one YF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.18–2.31 Å. In the fourth Y3+ site, Y3+ is bonded to seven F1- atoms to form YF7 pentagonal bipyramids that share corners with five YF7 pentagonal bipyramids, edges with three KF8 hexagonal bipyramids, and an edgeedge with one YF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.23–2.30 Å. In the fifth Y3+ site, Y3+ is bonded to seven F1- atoms to form YF7 pentagonal bipyramids that share a cornercorner with one KF8 hexagonal bipyramid, corners with three equivalent YF7 pentagonal bipyramids, edges with four KF8 hexagonal bipyramids, and an edgeedge with one YF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.18–2.32 Å. In the sixth Y3+ site, Y3+ is bonded to seven F1- atoms to form YF7 pentagonal bipyramids that share a cornercorner with one KF8 hexagonal bipyramid, corners with five YF7 pentagonal bipyramids, edges with four KF8 hexagonal bipyramids, and an edgeedge with one YF7 pentagonal bipyramid. There are a spread of Y–F bond distances ranging from 2.23–2.30 Å. There are twenty-four inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the second F1- site, F1- is bonded in a 2-coordinate geometry to two K1+ and two Y3+ atoms. In the third F1- site, F1- is bonded in a 3-coordinate geometry to one K1+ and two equivalent Y3+ atoms. In the fourth F1- site, F1- is bonded in a distorted linear geometry to one K1+ and two Y3+ atoms. In the fifth F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the sixth F1- site, F1- is bonded in a 2-coordinate geometry to two K1+ and two Y3+ atoms. In the seventh F1- site, F1- is bonded in a 2-coordinate geometry to one K1+ and two Y3+ atoms. In the eighth F1- site, F1- is bonded in a 2-coordinate geometry to one K1+ and two equivalent Y3+ atoms. In the ninth F1- site, F1- is bonded in a 2-coordinate geometry to two K1+ and two Y3+ atoms. In the tenth F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the eleventh F1- site, F1- is bonded in a 3-coordinate geometry to one K1+ and two equivalent Y3+ atoms. In the twelfth F1- site, F1- is bonded in a 2-coordinate geometry to one K1+ and two Y3+ atoms. In the thirteenth F1- site, F1- is bonded to three K1+ and one Y3+ atom to form a mixture of edge and corner-sharing FK3Y tetrahedra. In the fourteenth F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the fifteenth F1- site, F1- is bonded to three K1+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing FK3Y tetrahedra. In the sixteenth F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the seventeenth F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the eighteenth F1- site, F1- is bonded to three K1+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing FK3Y tetrahedra. In the nineteenth F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the twentieth F1- site, F1- is bonded to three K1+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing FK3Y tetrahedra. In the twenty-first F1- site, F1- is bonded to three K1+ and one Y3+ atom to form a mixture of edge and corner-sharing FK3Y tetrahedra. In the twenty-second F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the twenty-third F1- site, F1- is bonded in a 4-coordinate geometry to two K1+ and two Y3+ atoms. In the twenty-fourth F1- site, F1- is bonded to three K1+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing FK3Y tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YMg2 by Materials Project

Mg2Y is Magnesium-derived structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are three inequivalent Mg sites. In the first Mg site, Mg is bonded to twelve Mg atoms to form MgMg12 cuboctahedra that share corners with six equivalent YY9Mg3 cuboctahedra, corners with twelve MgMg12 cuboctahedra, edges with eighteen MgMg12 cuboctahedra, a faceface with one YY9Mg3 cuboctahedra, and faces with nineteen MgMg12 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.27–3.34 Å. In the second Mg site, Mg is bonded to nine Mg and three equivalent Y atoms to form MgY3Mg9 cuboctahedra that share corners with six equivalent YY9Mg3 cuboctahedra, corners with twelve MgY3Mg9 cuboctahedra, edges with six equivalent YY9Mg3 cuboctahedra, edges with twelve MgMg12 cuboctahedra, faces with seven equivalent YY9Mg3 cuboctahedra, and faces with thirteen MgMg12 cuboctahedra. All Mg–Mg bond lengths are 3.34 Å. All Mg–Y bond lengths are 3.43 Å. In the third Mg site, Mg is bonded to twelve Mg atoms to form MgMg12 cuboctahedra that share corners with six equivalent YY9Mg3 cuboctahedra, corners with twelve MgY3Mg9 cuboctahedra, edges with eighteen MgMg12 cuboctahedra, a faceface with one YY9Mg3 cuboctahedra, and faces with nineteen MgMg12 cuboctahedra. There are three shorter (3.27 Å) and six longer (3.34 Å) Mg–Mg bond lengths. Y is bonded to three equivalent Mg and nine equivalent Y atoms to form YY9Mg3 cuboctahedra that share corners with six equivalent YY9Mg3 cuboctahedra, corners with twelve MgMg12 cuboctahedra, edges with six equivalent MgY3Mg9 cuboctahedra, edges with twelve equivalent YY9Mg3 cuboctahedra, faces with eight MgMg12 cuboctahedra, and faces with twelve equivalent YY9Mg3 cuboctahedra. There are six shorter (3.34 Å) and three longer (3.54 Å) Y–Y bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y3Bi by Materials Project

Y3Bi is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Y is bonded to eight equivalent Y and four equivalent Bi atoms to form distorted YY8Bi4 cuboctahedra that share corners with twelve equivalent YY8Bi4 cuboctahedra, edges with eight equivalent BiY12 cuboctahedra, edges with sixteen equivalent YY8Bi4 cuboctahedra, faces with four equivalent BiY12 cuboctahedra, and faces with fourteen equivalent YY8Bi4 cuboctahedra. All Y–Y bond lengths are 3.46 Å. All Y–Bi bond lengths are 3.46 Å. Bi is bonded to twelve equivalent Y atoms to form BiY12 cuboctahedra that share corners with twelve equivalent BiY12 cuboctahedra, edges with twenty-four equivalent YY8Bi4 cuboctahedra, faces with six equivalent BiY12 cuboctahedra, and faces with twelve equivalent YY8Bi4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y6Si7Ni16 by Materials Project

Y6Ni16Si7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Y is bonded in a 12-coordinate geometry to eight Ni and four equivalent Si atoms. There are four shorter (2.82 Å) and four longer (2.90 Å) Y–Ni bond lengths. All Y–Si bond lengths are 2.97 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 12-coordinate geometry to three equivalent Y, six Ni, and three equivalent Si atoms. All Ni–Ni bond lengths are 2.58 Å. All Ni–Si bond lengths are 2.40 Å. In the second Ni site, Ni is bonded in a 4-coordinate geometry to three equivalent Y, six Ni, and four Si atoms. All Ni–Ni bond lengths are 2.83 Å. There are one shorter (2.45 Å) and three longer (2.57 Å) Ni–Si bond lengths. There are two inequivalent Si sites. In the first Si site, Si is bonded to four equivalent Y and eight Ni atoms to form a mixture of corner and face-sharing SiY4Ni8 cuboctahedra. In the second Si site, Si is bonded in a body-centered cubic geometry to eight equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y6Mn14Fe9 by Materials Project

Y6Mn14Fe9 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Y is bonded in a 12-coordinate geometry to eight Mn and four equivalent Fe atoms. There are four shorter (2.91 Å) and four longer (3.04 Å) Y–Mn bond lengths. All Y–Fe bond lengths are 3.07 Å. There are two inequivalent Mn sites. In the first Mn site, Mn is bonded to four equivalent Y, four equivalent Mn, and four equivalent Fe atoms to form distorted MnY4Mn4Fe4 cuboctahedra that share corners with four equivalent MnY4Mn4Fe4 cuboctahedra, corners with eight equivalent FeY3Mn6Fe3 cuboctahedra, faces with eight equivalent MnY4Mn4Fe4 cuboctahedra, and faces with eight equivalent FeY3Mn6Fe3 cuboctahedra. All Mn–Mn bond lengths are 2.64 Å. All Mn–Fe bond lengths are 2.46 Å. In the second Mn site, Mn is bonded in a 1-coordinate geometry to three equivalent Y, six Mn, and four Fe atoms. All Mn–Mn bond lengths are 2.87 Å. There are one shorter (2.49 Å) and three longer (2.61 Å) Mn–Fe bond lengths. There are two inequivalent Fe sites. In the first Fe site, Fe is bonded in a body-centered cubic geometry to eight equivalent Mn atoms. In the second Fe site, Fe is bonded to three equivalent Y, six Mn, and three equivalent Fe atoms to form distorted FeY3Mn6Fe3 cuboctahedra that share corners with six equivalent MnY4Mn4Fe4 cuboctahedra, corners with six equivalent FeY3Mn6Fe3 cuboctahedra, faces with six equivalent MnY4Mn4Fe4 cuboctahedra, and faces with six equivalent FeY3Mn6Fe3 cuboctahedra. All Fe–Fe bond lengths are 2.38 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y6Fe(SiS7)2 by Materials Project

Y6Fe(SiS7)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.72–3.14 Å. In the second Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.73–3.14 Å. In the third Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–3.14 Å. In the fourth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.73–2.99 Å. In the fifth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.72–2.99 Å. In the sixth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.72–2.99 Å. Fe2+ is bonded in an octahedral geometry to six S2- atoms. There are a spread of Fe–S bond distances ranging from 2.52–2.54 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are one shorter (2.10 Å) and three longer (2.14 Å) Si–S bond lengths. In the second Si4+ site, Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are one shorter (2.10 Å) and three longer (2.14 Å) Si–S bond lengths. There are fourteen inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted tetrahedral geometry to three Y3+ and one Si4+ atom. In the second S2- site, S2- is bonded in a distorted tetrahedral geometry to three Y3+ and one Si4+ atom. In the third S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Fe2+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Fe2+ atom. In the fifth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Fe2+ atom. In the sixth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Fe2+ atom. In the seventh S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Fe2+ atom. In the eighth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Fe2+ atom. In the ninth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Y3+ and one Si4+ atom. In the tenth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Y3+ and one Si4+ atom. In the eleventh S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Y3+ and one Si4+ atom. In the twelfth S2- site, S2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom. In the thirteenth S2- site, S2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom. In the fourteenth S2- site, S2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom.

36 MATERIALS SCIENCE↗