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At least 1,153 records · Page 64
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DOE OSTI2020

Materials Data on Nd6Ge3S14 by Materials Project

Nd6Ge3S14 crystallizes in the trigonal P3 space group. The structure is three-dimensional. there are two inequivalent Nd3+ sites. In the first Nd3+ site, Nd3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Nd–S bond distances ranging from 2.88–3.15 Å. In the second Nd3+ site, Nd3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Nd–S bond distances ranging from 2.87–3.12 Å. There are three inequivalent Ge+3.33+ sites. In the first Ge+3.33+ site, Ge+3.33+ is bonded in a tetrahedral geometry to four S2- atoms. There are one shorter (2.20 Å) and three longer (2.25 Å) Ge–S bond lengths. In the second Ge+3.33+ site, Ge+3.33+ is bonded in a tetrahedral geometry to four S2- atoms. There are one shorter (2.20 Å) and three longer (2.25 Å) Ge–S bond lengths. In the third Ge+3.33+ site, Ge+3.33+ is bonded in an octahedral geometry to six S2- atoms. There are three shorter (2.69 Å) and three longer (2.72 Å) Ge–S bond lengths. There are six inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Nd3+ and one Ge+3.33+ atom. In the second S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Nd3+ and one Ge+3.33+ atom. In the third S2- site, S2- is bonded in a distorted tetrahedral geometry to three equivalent Nd3+ and one Ge+3.33+ atom. In the fourth S2- site, S2- is bonded in a distorted tetrahedral geometry to three equivalent Nd3+ and one Ge+3.33+ atom. In the fifth S2- site, S2- is bonded in a 5-coordinate geometry to four Nd3+ and one Ge+3.33+ atom. In the sixth S2- site, S2- is bonded in a 5-coordinate geometry to four Nd3+ and one Ge+3.33+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba10Ge7O3 by Materials Project

Ba10Ge7O3 crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. there are four inequivalent Ba sites. In the first Ba site, Ba is bonded in a distorted hexagonal planar geometry to six Ge atoms. There are four shorter (3.54 Å) and two longer (3.65 Å) Ba–Ge bond lengths. In the second Ba site, Ba is bonded in a distorted bent 120 degrees geometry to four equivalent Ge and two equivalent O atoms. All Ba–Ge bond lengths are 3.55 Å. Both Ba–O bond lengths are 2.66 Å. In the third Ba site, Ba is bonded in a distorted bent 150 degrees geometry to three Ge and two equivalent O atoms. There are one shorter (3.42 Å) and two longer (3.50 Å) Ba–Ge bond lengths. Both Ba–O bond lengths are 2.66 Å. In the fourth Ba site, Ba is bonded to twelve equivalent Ge atoms to form face-sharing BaGe12 cuboctahedra. All Ba–Ge bond lengths are 3.58 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Ba and two equivalent Ge atoms. There are one shorter (2.53 Å) and one longer (2.56 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to nine Ba atoms. O is bonded to four Ba atoms to form distorted corner-sharing OBa4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr6Ge3Se14 by Materials Project

Pr6Ge3Se14 crystallizes in the trigonal P3 space group. The structure is three-dimensional. there are two inequivalent Pr3+ sites. In the first Pr3+ site, Pr3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Pr–Se bond distances ranging from 3.00–3.35 Å. In the second Pr3+ site, Pr3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Pr–Se bond distances ranging from 3.00–3.30 Å. There are three inequivalent Ge+3.33+ sites. In the first Ge+3.33+ site, Ge+3.33+ is bonded in a tetrahedral geometry to four Se2- atoms. There are one shorter (2.35 Å) and three longer (2.41 Å) Ge–Se bond lengths. In the second Ge+3.33+ site, Ge+3.33+ is bonded in a tetrahedral geometry to four Se2- atoms. There are one shorter (2.35 Å) and three longer (2.40 Å) Ge–Se bond lengths. In the third Ge+3.33+ site, Ge+3.33+ is bonded in an octahedral geometry to six Se2- atoms. There are three shorter (2.82 Å) and three longer (2.86 Å) Ge–Se bond lengths. There are six inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a tetrahedral geometry to three equivalent Pr3+ and one Ge+3.33+ atom. In the second Se2- site, Se2- is bonded in a tetrahedral geometry to three equivalent Pr3+ and one Ge+3.33+ atom. In the third Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to three Pr3+ and one Ge+3.33+ atom. In the fourth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to three Pr3+ and one Ge+3.33+ atom. In the fifth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Pr3+ and one Ge+3.33+ atom. In the sixth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Pr3+ and one Ge+3.33+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Dy3Ge5 by Materials Project

Dy3Ge5 crystallizes in the hexagonal P-62c space group. The structure is three-dimensional. Dy is bonded in a 8-coordinate geometry to ten Ge atoms. There are a spread of Dy–Ge bond distances ranging from 2.95–3.48 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Dy and three equivalent Ge atoms. All Ge–Ge bond lengths are 2.57 Å. In the second Ge site, Ge is bonded in a 4-coordinate geometry to six equivalent Dy and two Ge atoms. The Ge–Ge bond length is 2.59 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Dy and three equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce3(NiGe)4 by Materials Project

Ce3Ni4Ge4 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Ce sites. In the first Ce site, Ce is bonded in a 2-coordinate geometry to eight Ni and six Ge atoms. There are a spread of Ce–Ni bond distances ranging from 3.14–3.19 Å. There are two shorter (3.11 Å) and four longer (3.12 Å) Ce–Ge bond lengths. In the second Ce site, Ce is bonded to four equivalent Ni and eight equivalent Ge atoms to form a mixture of face and edge-sharing CeNi4Ge8 cuboctahedra. All Ce–Ni bond lengths are 3.09 Å. All Ce–Ge bond lengths are 3.18 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 3-coordinate geometry to six Ce and three Ge atoms. There are two shorter (2.34 Å) and one longer (2.42 Å) Ni–Ge bond lengths. In the second Ni site, Ni is bonded in a 4-coordinate geometry to four equivalent Ce and four equivalent Ge atoms. There are two shorter (2.39 Å) and two longer (2.44 Å) Ni–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Ce and five Ni atoms. In the second Ge site, Ge is bonded in a 2-coordinate geometry to six Ce, two equivalent Ni, and one Ge atom. The Ge–Ge bond length is 2.54 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Oxide-Free Three-Dimensional Germanium/Silicon Core–Shell Metalattice Made by High-Pressure Confined Chemical Vapor Deposition

Metalattices are crystalline arrays of uniform particles in which the period of the crystal is close to some characteristic physical length scale of the material. In this work, we explore the synthesis and properties of a germanium metalattice in which the similar to 70 nm periodicity of a silica colloidal crystal template is close to the similar to 24 nm Bohr exciton radius of the nanocrystalline Ge replica. The problem of Ge surface oxidation can be significant when exploring quantum confinement effects or designing electronically coupled nanostructures because of the high surface area to volume ratio at the nanoscale. To eliminate surface oxidation, we developed a coreshell synthesis in which the Ge metalattice is protected by an oxide-free Si interfacial layer, and we explore its properties by transmission electron microscopy (TEM), Raman spectroscopy, and electron energy loss spectroscopy (EELS). The interstices of a colloidal crystal film grown from 69 nm diameter spherical silica particles were filled with polycrystalline Ge by high-pressure confined chemical vapor deposition (HPcCVD) from GeH4. After the SiO2 template was etched away with aqueous HF, the Ge replica was uniformly coated with an amorphous Si shell by HPcCVD as confirmed by TEM-EDS (energy-dispersive X-ray spectroscopy) and Raman spectroscopy. Formation of the shell prevents oxidation of the Ge core within the detection limit of XPS. The electronic properties of the core-shell structure were studied by accessing the Ge 3d edge onset using STEM-EELS. A blue shift in the edge onset with decreasing size of Ge sites in the metalattices suggests quantum confinement of the Ge core. The degree of quantum confinement of the Ge core depends on the void sizes in the template, which is tunable by using silica particles of varying size. The edge onset also shows a shift to higher energy near the shell in comparison with the Ge core. This shift along with the observation of Ge-Si vibrational modes in the Raman spectrum indicate interdiffusion of Ge and Si. Both the size of the voids in the template and core-shell interdiffusion of Si and Ge can in principle be tuned to modify the electronic properties of the Ge metalattice.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on CsGe by Materials Project

GeCs crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent Cs sites. In the first Cs site, Cs is bonded in a 6-coordinate geometry to six Ge atoms. There are three shorter (3.77 Å) and three longer (4.03 Å) Cs–Ge bond lengths. In the second Cs site, Cs is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Cs–Ge bond distances ranging from 3.64–4.04 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Cs and three equivalent Ge atoms. All Ge–Ge bond lengths are 2.61 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Cs and three equivalent Ge atoms. There are two shorter (2.60 Å) and one longer (2.63 Å) Ge–Ge bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K3Ge4Au by Materials Project

K3AuGe4 crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 6-coordinate geometry to two equivalent Au and four equivalent Ge atoms. Both K–Au bond lengths are 3.43 Å. There are two shorter (3.56 Å) and two longer (3.78 Å) K–Ge bond lengths. In the second K site, K is bonded in a 1-coordinate geometry to one Au and eight Ge atoms. The K–Au bond length is 3.32 Å. There are a spread of K–Ge bond distances ranging from 3.56–3.80 Å. Au is bonded in a 8-coordinate geometry to four K and four Ge atoms. There are two shorter (2.65 Å) and two longer (2.67 Å) Au–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to six K, one Au, and three Ge atoms. There are two shorter (2.58 Å) and one longer (2.78 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent K, one Au, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm(NiGe)3 by Materials Project

Sm(NiGe)3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sm is bonded in a 4-coordinate geometry to eight Ni and eight Ge atoms. There are four shorter (3.20 Å) and four longer (3.24 Å) Sm–Ni bond lengths. There are four shorter (3.12 Å) and four longer (3.20 Å) Sm–Ge bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 9-coordinate geometry to four equivalent Sm and five Ge atoms. There are one shorter (2.33 Å) and four longer (2.39 Å) Ni–Ge bond lengths. In the second Ni site, Ni is bonded in a 8-coordinate geometry to two equivalent Sm and six Ge atoms. There are four shorter (2.49 Å) and two longer (2.51 Å) Ni–Ge bond lengths. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Ni atoms. In the second Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Ni atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Sm and five Ni atoms. In the fourth Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Sm and four equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnGeRh by Materials Project

MnRhGe crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. there are three inequivalent Mn sites. In the first Mn site, Mn is bonded in a 11-coordinate geometry to six Rh and five Ge atoms. There are a spread of Mn–Rh bond distances ranging from 2.77–2.85 Å. There are a spread of Mn–Ge bond distances ranging from 2.65–2.84 Å. In the second Mn site, Mn is bonded in a 5-coordinate geometry to four Rh and five Ge atoms. There are two shorter (2.84 Å) and two longer (3.05 Å) Mn–Rh bond lengths. There are a spread of Mn–Ge bond distances ranging from 2.61–2.69 Å. In the third Mn site, Mn is bonded in a 11-coordinate geometry to six Rh and five Ge atoms. There are a spread of Mn–Rh bond distances ranging from 2.84–3.05 Å. There are a spread of Mn–Ge bond distances ranging from 2.64–2.71 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 10-coordinate geometry to six Mn and four Ge atoms. There are two shorter (2.49 Å) and two longer (2.50 Å) Rh–Ge bond lengths. In the second Rh site, Rh is bonded in a 8-coordinate geometry to five Mn and four Ge atoms. There are three shorter (2.48 Å) and one longer (2.50 Å) Rh–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to three Mn and six Rh atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Mn and three Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RbGe by Materials Project

RbGe crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent Rb sites. In the first Rb site, Rb is bonded in a 6-coordinate geometry to six Ge atoms. There are three shorter (3.67 Å) and three longer (3.81 Å) Rb–Ge bond lengths. In the second Rb site, Rb is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Rb–Ge bond distances ranging from 3.52–3.79 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Rb and three equivalent Ge atoms. All Ge–Ge bond lengths are 2.60 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Rb and three equivalent Ge atoms. There are two shorter (2.60 Å) and one longer (2.63 Å) Ge–Ge bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on U3Co4Ge7 by Materials Project

U3Co4Ge7 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent U sites. In the first U site, U is bonded to twelve Ge atoms to form a mixture of distorted corner and face-sharing UGe12 cuboctahedra. There are four shorter (2.93 Å) and eight longer (3.04 Å) U–Ge bond lengths. In the second U site, U is bonded in a 12-coordinate geometry to eight Co and eight Ge atoms. There are four shorter (2.95 Å) and four longer (3.29 Å) U–Co bond lengths. There are four shorter (3.04 Å) and four longer (3.26 Å) U–Ge bond lengths. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 8-coordinate geometry to four equivalent U and four equivalent Ge atoms. All Co–Ge bond lengths are 2.44 Å. In the second Co site, Co is bonded in a 5-coordinate geometry to four equivalent U and five Ge atoms. There are four shorter (2.30 Å) and one longer (2.32 Å) Co–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a square co-planar geometry to four equivalent U atoms. In the second Ge site, Ge is bonded in a 2-coordinate geometry to four U and two equivalent Co atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent U and five Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KGe by Materials Project

KGe crystallizes in the cubic P-43n space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of K–Ge bond distances ranging from 3.38–3.67 Å. In the second K site, K is bonded in a 6-coordinate geometry to six Ge atoms. There are three shorter (3.50 Å) and three longer (3.67 Å) K–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six K and three equivalent Ge atoms. There are two shorter (2.60 Å) and one longer (2.62 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six K and three equivalent Ge atoms. All Ge–Ge bond lengths are 2.60 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba4Ge20Au3 by Materials Project

Ba4Au3Ge20 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded in a 8-coordinate geometry to twenty Ge atoms. There are eight shorter (3.49 Å) and twelve longer (3.63 Å) Ba–Ge bond lengths. In the second Ba site, Ba is bonded in a 12-coordinate geometry to four equivalent Au and eight equivalent Ge atoms. All Ba–Au bond lengths are 3.89 Å. All Ba–Ge bond lengths are 3.69 Å. Au is bonded to four equivalent Ba and four equivalent Ge atoms to form a mixture of corner and edge-sharing AuBa4Ge4 tetrahedra. All Au–Ge bond lengths are 2.57 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 5-coordinate geometry to one Ba and four Ge atoms. All Ge–Ge bond lengths are 2.55 Å. In the second Ge site, Ge is bonded in a distorted single-bond geometry to three Ba, one Au, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge19(PI)4 by Materials Project

Ge19P4(I)4 crystallizes in the cubic P-43n space group. The structure is three-dimensional and consists of eight hydriodic acid molecules and one Ge19P4 framework. In the Ge19P4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge is bonded to three Ge and one P atom to form distorted GeGe3P tetrahedra that share corners with two equivalent PGe4 tetrahedra and corners with ten GeGe3P tetrahedra. There are a spread of Ge–Ge bond distances ranging from 2.49–2.54 Å. The Ge–P bond length is 2.45 Å. In the second Ge site, Ge is bonded to three equivalent Ge and one P atom to form distorted GeGe3P tetrahedra that share corners with three equivalent PGe4 tetrahedra and corners with nine GeGe3P tetrahedra. The Ge–P bond length is 2.41 Å. In the third Ge site, Ge is bonded to four equivalent Ge atoms to form GeGe4 tetrahedra that share corners with four equivalent PGe4 tetrahedra and corners with eight GeGe3P tetrahedra. P is bonded to four Ge atoms to form PGe4 tetrahedra that share corners with twelve GeGe3P tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge19(PBr)4 by Materials Project

Ge19P4(Br)4 crystallizes in the cubic P-43n space group. The structure is three-dimensional and consists of eight hydrobromic acid molecules and one Ge19P4 framework. In the Ge19P4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge is bonded to three Ge and one P atom to form GeGe3P tetrahedra that share corners with two equivalent PGe4 tetrahedra and corners with ten GeGe3P tetrahedra. There are a spread of Ge–Ge bond distances ranging from 2.46–2.51 Å. The Ge–P bond length is 2.42 Å. In the second Ge site, Ge is bonded to three equivalent Ge and one P atom to form GeGe3P tetrahedra that share corners with three equivalent PGe4 tetrahedra and corners with nine GeGe3P tetrahedra. The Ge–P bond length is 2.39 Å. In the third Ge site, Ge is bonded to four equivalent Ge atoms to form GeGe4 tetrahedra that share corners with four equivalent PGe4 tetrahedra and corners with eight GeGe3P tetrahedra. P is bonded to four Ge atoms to form PGe4 tetrahedra that share corners with twelve GeGe3P tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge19(AsI)4 by Materials Project

Ge19As4(I)4 crystallizes in the cubic P-43n space group. The structure is three-dimensional and consists of eight hydriodic acid molecules and one Ge19As4 framework. In the Ge19As4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge is bonded to three Ge and one As atom to form GeGe3As tetrahedra that share corners with two equivalent AsGe4 tetrahedra and corners with ten GeGe3As tetrahedra. There are a spread of Ge–Ge bond distances ranging from 2.49–2.54 Å. The Ge–As bond length is 2.55 Å. In the second Ge site, Ge is bonded to three equivalent Ge and one As atom to form distorted GeGe3As tetrahedra that share corners with three equivalent AsGe4 tetrahedra and corners with nine GeGe4 tetrahedra. The Ge–As bond length is 2.50 Å. In the third Ge site, Ge is bonded to four equivalent Ge atoms to form GeGe4 tetrahedra that share corners with four equivalent AsGe4 tetrahedra and corners with eight GeGe3As tetrahedra. As is bonded to four Ge atoms to form AsGe4 tetrahedra that share corners with twelve GeGe3As tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li7Ge2 by Materials Project

Li7Ge2 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. there are six inequivalent Li sites. In the first Li site, Li is bonded in a 3-coordinate geometry to one Li and three Ge atoms. The Li–Li bond length is 2.55 Å. There are two shorter (2.69 Å) and one longer (2.70 Å) Li–Ge bond lengths. In the second Li site, Li is bonded in a 8-coordinate geometry to four equivalent Ge atoms. All Li–Ge bond lengths are 2.66 Å. In the third Li site, Li is bonded in a distorted body-centered cubic geometry to eight Li atoms. All Li–Li bond lengths are 2.68 Å. In the fourth Li site, Li is bonded in a 4-coordinate geometry to two equivalent Li and four Ge atoms. There are two shorter (2.78 Å) and two longer (2.81 Å) Li–Ge bond lengths. In the fifth Li site, Li is bonded in a 10-coordinate geometry to four Ge atoms. There are two shorter (2.70 Å) and two longer (2.98 Å) Li–Ge bond lengths. In the sixth Li site, Li is bonded in a 1-coordinate geometry to two equivalent Ge atoms. There are one shorter (2.70 Å) and one longer (2.94 Å) Li–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a distorted body-centered cubic geometry to eight Li atoms. In the second Ge site, Ge is bonded in a 12-coordinate geometry to twelve Li atoms.

36 MATERIALS SCIENCE↗