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7 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Li(PrGe3)2 by Materials Project

LiPr2Ge6 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Li is bonded in a body-centered cubic geometry to eight Ge atoms. There are four shorter (2.46 Å) and four longer (2.53 Å) Li–Ge bond lengths. Pr is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.08–3.39 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to six equivalent Pr and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.63 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Li and two equivalent Pr atoms. In the third Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Li and two equivalent Pr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiPrGe by Materials Project

LiPrGe crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Li is bonded to four Ge atoms to form a mixture of distorted edge and corner-sharing LiGe4 tetrahedra. There are two shorter (2.79 Å) and two longer (2.90 Å) Li–Ge bond lengths. Pr is bonded in a 5-coordinate geometry to five Ge atoms. There are one shorter (3.08 Å) and four longer (3.12 Å) Pr–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Li and three equivalent Pr atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Li and six equivalent Pr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiPrGe2 by Materials Project

LiPrGe2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Li is bonded in a 5-coordinate geometry to five Ge atoms. There are a spread of Li–Ge bond distances ranging from 2.58–2.73 Å. Pr is bonded in a 6-coordinate geometry to nine Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.12–3.43 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Li, four equivalent Pr, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.55 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to two equivalent Li, five equivalent Pr, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li(PrGe)4 by Materials Project

Li(PrGe)4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Li is bonded in a T-shaped geometry to three Ge atoms. There are a spread of Li–Ge bond distances ranging from 2.83–3.00 Å. There are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.09–3.71 Å. In the second Pr site, Pr is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.00–3.15 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to two equivalent Li, six Pr, and one Ge atom. The Ge–Ge bond length is 2.57 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to seven Pr and one Ge atom. The Ge–Ge bond length is 2.66 Å. In the third Ge site, Ge is bonded in a 8-coordinate geometry to one Li, six Pr, and one Ge atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Pr2Ge3 by Materials Project

Li2Pr2Ge3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Li is bonded to three equivalent Pr and four Ge atoms to form a mixture of distorted face, edge, and corner-sharing LiPr3Ge4 tetrahedra. There are one shorter (3.15 Å) and two longer (3.19 Å) Li–Pr bond lengths. There are a spread of Li–Ge bond distances ranging from 2.60–2.76 Å. There are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 9-coordinate geometry to nine Ge atoms. There are five shorter (3.17 Å) and four longer (3.35 Å) Pr–Ge bond lengths. In the second Pr site, Pr is bonded in a 12-coordinate geometry to six equivalent Li and six Ge atoms. There are four shorter (3.16 Å) and two longer (3.21 Å) Pr–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to one Li, six Pr, and two equivalent Ge atoms. There are one shorter (2.51 Å) and one longer (2.54 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 6-coordinate geometry to six equivalent Li and three Pr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li8Pr7Ge10 by Materials Project

Pr7Li8Ge10 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are two inequivalent Li sites. In the first Li site, Li is bonded to three Pr and four Ge atoms to form distorted LiPr3Ge4 tetrahedra that share corners with five equivalent LiPr3Ge4 tetrahedra, edges with two equivalent PrGe6 octahedra, edges with six LiPr3Ge4 tetrahedra, and faces with four LiPr3Ge4 tetrahedra. There are two shorter (3.17 Å) and one longer (3.18 Å) Li–Pr bond lengths. There are a spread of Li–Ge bond distances ranging from 2.67–2.79 Å. In the second Li site, Li is bonded to three Pr and four Ge atoms to form distorted LiPr3Ge4 tetrahedra that share a cornercorner with one PrGe6 octahedra, corners with four equivalent LiPr3Ge4 tetrahedra, edges with six LiPr3Ge4 tetrahedra, and faces with four LiPr3Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 52°. There are two shorter (3.17 Å) and one longer (3.19 Å) Li–Pr bond lengths. There are a spread of Li–Ge bond distances ranging from 2.58–2.76 Å. There are four inequivalent Pr sites. In the first Pr site, Pr is bonded in a 6-coordinate geometry to six Li and six Ge atoms. There are four shorter (3.16 Å) and two longer (3.18 Å) Pr–Ge bond lengths. In the second Pr site, Pr is bonded in a 5-coordinate geometry to nine Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.15–3.35 Å. In the third Pr site, Pr is bonded in a 12-coordinate geometry to six Li and six Ge atoms. All Pr–Ge bond lengths are 3.23 Å. In the fourth Pr site, Pr is bonded to six Ge atoms to form PrGe6 octahedra that share corners with four equivalent LiPr3Ge4 tetrahedra, edges with two equivalent PrGe6 octahedra, and edges with eight equivalent LiPr3Ge4 tetrahedra. There are four shorter (3.14 Å) and two longer (3.18 Å) Pr–Ge bond lengths. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to six Li and three Pr atoms. In the second Ge site, Ge is bonded in a 6-coordinate geometry to six Li and three Pr atoms. In the third Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Li, six Pr, and one Ge atom. The Ge–Ge bond length is 2.57 Å. In the fourth Ge site, Ge is bonded in a 1-coordinate geometry to one Li, six Pr, and two equivalent Ge atoms. There are one shorter (2.52 Å) and one longer (2.54 Å) Ge–Ge bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2PrGe by Materials Project

Li2PrGe crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Li is bonded in a distorted trigonal non-coplanar geometry to four equivalent Pr and three equivalent Ge atoms. There are a spread of Li–Pr bond distances ranging from 3.03–3.11 Å. All Li–Ge bond lengths are 2.61 Å. Pr is bonded in a 8-coordinate geometry to eight equivalent Li and six equivalent Ge atoms. All Pr–Ge bond lengths are 3.50 Å. Ge is bonded in a distorted hexagonal planar geometry to six equivalent Li and six equivalent Pr atoms.

36 MATERIALS SCIENCE↗