Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ge”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,567 records · Page 87

Materials Data on Zr6Ni16Ge7 by Materials Project

Zr6Ni16Ge7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Zr is bonded in a 12-coordinate geometry to eight Ni and four equivalent Ge atoms. There are four shorter (2.83 Å) and four longer (2.84 Å) Zr–Ni bond lengths. All Zr–Ge bond lengths are 2.97 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 7-coordinate geometry to three equivalent Zr, six Ni, and four Ge atoms. There are three shorter (2.62 Å) and three longer (2.77 Å) Ni–Ni bond lengths. There are one shorter (2.40 Å) and three longer (2.58 Å) Ni–Ge bond lengths. In the second Ni site, Ni is bonded in a 12-coordinate geometry to three equivalent Zr, six Ni, and three equivalent Ge atoms. All Ni–Ni bond lengths are 2.68 Å. All Ni–Ge bond lengths are 2.39 Å. There are two 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 to four equivalent Zr and eight Ni atoms to form a mixture of corner and face-sharing GeZr4Ni8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Ta6Co16Ge7 by Materials Project

Ta6Co16Ge7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ta is bonded in a 12-coordinate geometry to eight Co and four equivalent Ge atoms. There are four shorter (2.68 Å) and four longer (2.81 Å) Ta–Co bond lengths. All Ta–Ge bond lengths are 2.89 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 1-coordinate geometry to three equivalent Ta, six Co, and four Ge atoms. There are three shorter (2.56 Å) and three longer (2.70 Å) Co–Co bond lengths. There are one shorter (2.34 Å) and three longer (2.50 Å) Co–Ge bond lengths. In the second Co site, Co is bonded in a 6-coordinate geometry to three equivalent Ta, three equivalent Co, and three equivalent Ge atoms. All Co–Ge bond lengths are 2.32 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Co atoms. In the second Ge site, Ge is bonded to four equivalent Ta and eight Co atoms to form a mixture of distorted corner and face-sharing GeTa4Co8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Nb6Ni16Ge7 by Materials Project

Nb6Ni16Ge7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb is bonded in a 12-coordinate geometry to eight Ni and four equivalent Ge atoms. There are four shorter (2.74 Å) and four longer (2.83 Å) Nb–Ni bond lengths. All Nb–Ge bond lengths are 2.92 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 1-coordinate geometry to three equivalent Nb, six Ni, and four Ge atoms. There are three shorter (2.60 Å) and three longer (2.68 Å) Ni–Ni bond lengths. There are one shorter (2.32 Å) and three longer (2.53 Å) Ni–Ge bond lengths. In the second Ni site, Ni is bonded in a 12-coordinate geometry to three equivalent Nb, six Ni, and three equivalent Ge atoms. All Ni–Ni bond lengths are 2.67 Å. All Ni–Ge bond lengths are 2.34 Å. There are two 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 to four equivalent Nb and eight Ni atoms to form a mixture of distorted face and corner-sharing GeNb4Ni8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Zr6Co16Ge7 by Materials Project

Zr6Co16Ge7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Zr is bonded in a 12-coordinate geometry to eight Co and four equivalent Ge atoms. There are four shorter (2.81 Å) and four longer (2.82 Å) Zr–Co bond lengths. All Zr–Ge bond lengths are 2.94 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 7-coordinate geometry to three equivalent Zr, six Co, and four Ge atoms. There are three shorter (2.55 Å) and three longer (2.80 Å) Co–Co bond lengths. There are one shorter (2.42 Å) and three longer (2.54 Å) Co–Ge bond lengths. In the second Co site, Co is bonded in a 12-coordinate geometry to three equivalent Zr, six Co, and three equivalent Ge atoms. All Co–Co bond lengths are 2.62 Å. All Co–Ge bond lengths are 2.36 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Co atoms. In the second Ge site, Ge is bonded to four equivalent Zr and eight Co atoms to form a mixture of corner and face-sharing GeZr4Co8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Hf6Co16Ge7 by Materials Project

Hf6Co16Ge7 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a 12-coordinate geometry to eight Co and four equivalent Ge atoms. There are four shorter (2.78 Å) and four longer (2.83 Å) Hf–Co bond lengths. All Hf–Ge bond lengths are 2.93 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 7-coordinate geometry to three equivalent Hf, six Co, and four Ge atoms. There are three shorter (2.55 Å) and three longer (2.77 Å) Co–Co bond lengths. There are one shorter (2.40 Å) and three longer (2.52 Å) Co–Ge bond lengths. In the second Co site, Co is bonded in a 12-coordinate geometry to three equivalent Hf, six Co, and three equivalent Ge atoms. All Co–Co bond lengths are 2.64 Å. All Co–Ge bond lengths are 2.35 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Co atoms. In the second Ge site, Ge is bonded to four equivalent Hf and eight Co atoms to form a mixture of corner and face-sharing GeHf4Co8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Ge3Ru2 by Materials Project

Ru2Ge3 crystallizes in the tetragonal P-4c2 space group. The structure is three-dimensional. there are three inequivalent Ru sites. In the first Ru site, Ru is bonded in a 6-coordinate geometry to six Ge atoms. There are four shorter (2.41 Å) and two longer (2.66 Å) Ru–Ge bond lengths. In the second Ru site, Ru is bonded in a 8-coordinate geometry to eight Ge atoms. There are four shorter (2.51 Å) and four longer (2.74 Å) Ru–Ge bond lengths. In the third Ru site, Ru is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Ru–Ge bond distances ranging from 2.44–2.61 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 5-coordinate geometry to five Ru atoms. In the second Ge site, Ge is bonded in a 4-coordinate geometry to four Ru atoms.

36 MATERIALS SCIENCE↗

Materials Data on Yb3Ge5 by Materials Project

Yb3Ge5 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Yb is bonded in a 10-coordinate geometry to ten Ge atoms. There are eight shorter (3.10 Å) and two longer (3.38 Å) Yb–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 Yb and three equivalent Ge atoms. All Ge–Ge bond lengths are 2.57 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to six equivalent Yb and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on TcGe3 by Materials Project

TcGe3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tc is bonded to twelve Ge atoms to form TcGe12 cuboctahedra that share corners with four equivalent TcGe12 cuboctahedra, corners with eight equivalent GeTc4Ge8 cuboctahedra, edges with eight equivalent TcGe12 cuboctahedra, edges with sixteen equivalent GeTc4Ge8 cuboctahedra, faces with four equivalent TcGe12 cuboctahedra, and faces with fourteen GeTc4Ge8 cuboctahedra. There are eight shorter (2.80 Å) and four longer (2.88 Å) Tc–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded to four equivalent Tc and eight Ge atoms to form GeTc4Ge8 cuboctahedra that share corners with twelve equivalent GeTc4Ge8 cuboctahedra, edges with eight equivalent TcGe12 cuboctahedra, edges with sixteen GeTc4Ge8 cuboctahedra, faces with four equivalent TcGe12 cuboctahedra, and faces with fourteen GeTc4Ge8 cuboctahedra. There are four shorter (2.80 Å) and four longer (2.88 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded to four equivalent Tc and eight equivalent Ge atoms to form GeTc4Ge8 cuboctahedra that share corners with four equivalent GeTc4Ge8 cuboctahedra, corners with eight equivalent TcGe12 cuboctahedra, edges with twenty-four GeTc4Ge8 cuboctahedra, faces with six equivalent TcGe12 cuboctahedra, and faces with twelve GeTc4Ge8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Ge3Rh by Materials Project

RhGe3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Rh is bonded to twelve Ge atoms to form RhGe12 cuboctahedra that share corners with four equivalent RhGe12 cuboctahedra, corners with eight equivalent GeGe8Rh4 cuboctahedra, edges with eight equivalent RhGe12 cuboctahedra, edges with sixteen equivalent GeGe8Rh4 cuboctahedra, faces with four equivalent RhGe12 cuboctahedra, and faces with fourteen GeGe8Rh4 cuboctahedra. There are eight shorter (2.83 Å) and four longer (3.00 Å) Rh–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded to four equivalent Rh and eight Ge atoms to form distorted GeGe8Rh4 cuboctahedra that share corners with twelve equivalent GeGe8Rh4 cuboctahedra, edges with eight equivalent RhGe12 cuboctahedra, edges with sixteen GeGe8Rh4 cuboctahedra, faces with four equivalent RhGe12 cuboctahedra, and faces with fourteen GeGe8Rh4 cuboctahedra. There are four shorter (2.83 Å) and four longer (3.00 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded to four equivalent Rh and eight equivalent Ge atoms to form GeGe8Rh4 cuboctahedra that share corners with four equivalent GeGe8Rh4 cuboctahedra, corners with eight equivalent RhGe12 cuboctahedra, edges with twenty-four GeGe8Rh4 cuboctahedra, faces with six equivalent RhGe12 cuboctahedra, and faces with twelve GeGe8Rh4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Ge3Sb by Materials Project

Ge3Sb is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a body-centered cubic geometry to four equivalent Ge and four equivalent Sb atoms. All Ge–Ge bond lengths are 3.04 Å. All Ge–Sb bond lengths are 3.04 Å. In the second Ge site, Ge is bonded in a body-centered cubic geometry to eight equivalent Ge atoms. Sb is bonded in a body-centered cubic geometry to eight equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on NiGe3 by Materials Project

NiGe3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ni is bonded to twelve Ge atoms to form NiGe12 cuboctahedra that share corners with four equivalent NiGe12 cuboctahedra, corners with eight equivalent GeNi4Ge8 cuboctahedra, edges with eight equivalent NiGe12 cuboctahedra, edges with sixteen equivalent GeNi4Ge8 cuboctahedra, faces with four equivalent NiGe12 cuboctahedra, and faces with fourteen GeNi4Ge8 cuboctahedra. There are eight shorter (2.82 Å) and four longer (2.90 Å) Ni–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded to four equivalent Ni and eight Ge atoms to form GeNi4Ge8 cuboctahedra that share corners with twelve equivalent GeNi4Ge8 cuboctahedra, edges with eight equivalent NiGe12 cuboctahedra, edges with sixteen GeNi4Ge8 cuboctahedra, faces with four equivalent NiGe12 cuboctahedra, and faces with fourteen GeNi4Ge8 cuboctahedra. There are four shorter (2.82 Å) and four longer (2.90 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded to four equivalent Ni and eight equivalent Ge atoms to form GeNi4Ge8 cuboctahedra that share corners with four equivalent GeNi4Ge8 cuboctahedra, corners with eight equivalent NiGe12 cuboctahedra, edges with twenty-four GeNi4Ge8 cuboctahedra, faces with six equivalent NiGe12 cuboctahedra, and faces with twelve GeNi4Ge8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on SnGe3 by Materials Project

Sn1Ge3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sn is bonded to twelve Ge atoms to form SnGe12 cuboctahedra that share corners with four equivalent SnGe12 cuboctahedra, corners with eight equivalent GeSn4Ge8 cuboctahedra, edges with eight equivalent SnGe12 cuboctahedra, edges with sixteen equivalent GeSn4Ge8 cuboctahedra, faces with four equivalent SnGe12 cuboctahedra, and faces with fourteen GeSn4Ge8 cuboctahedra. There are four shorter (3.09 Å) and eight longer (3.12 Å) Sn–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded to four equivalent Sn and eight Ge atoms to form distorted GeSn4Ge8 cuboctahedra that share corners with twelve equivalent GeSn4Ge8 cuboctahedra, edges with eight equivalent SnGe12 cuboctahedra, edges with sixteen GeSn4Ge8 cuboctahedra, faces with four equivalent SnGe12 cuboctahedra, and faces with fourteen GeSn4Ge8 cuboctahedra. There are four shorter (3.09 Å) and four longer (3.12 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded to four equivalent Sn and eight equivalent Ge atoms to form distorted GeSn4Ge8 cuboctahedra that share corners with four equivalent GeSn4Ge8 cuboctahedra, corners with eight equivalent SnGe12 cuboctahedra, edges with twenty-four GeSn4Ge8 cuboctahedra, faces with six equivalent SnGe12 cuboctahedra, and faces with twelve GeSn4Ge8 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on PrGe5 by Materials Project

PrGe5 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Pr is bonded in a 10-coordinate geometry to fourteen Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.14–3.53 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to three equivalent Pr and five Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.56–2.93 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Pr and eight equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeGe5 by Materials Project

CeGe5 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Ce is bonded in a 10-coordinate geometry to fourteen Ge atoms. There are a spread of Ce–Ge bond distances ranging from 3.09–3.51 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to three equivalent Ce and five Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.58–2.91 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Ce and eight equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaGe5 by Materials Project

LaGe5 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. La is bonded in a 10-coordinate geometry to fourteen Ge atoms. There are a spread of La–Ge bond distances ranging from 3.17–3.54 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to three equivalent La and five Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.57–2.96 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent La and eight equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on CuGe3 by Materials Project

Ge3Cu is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Cu is bonded in a 3-coordinate geometry to eleven Ge atoms. There are a spread of Cu–Ge bond distances ranging from 2.51–2.95 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to four equivalent Cu and six Ge atoms. There are three shorter (2.85 Å) and three longer (2.95 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a distorted trigonal planar geometry to three equivalent Cu and six equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on TbGe5 by Materials Project

TbGe5 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Tb is bonded in a 10-coordinate geometry to fourteen Ge atoms. There are a spread of Tb–Ge bond distances ranging from 3.09–3.51 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to three equivalent Tb and five Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.57–2.90 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Tb and eight equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ho3(GeRh)2 by Materials Project

Ho3(RhGe)2 crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 9-coordinate geometry to four equivalent Rh and five Ge atoms. There are two shorter (3.02 Å) and two longer (3.05 Å) Ho–Rh bond lengths. There are a spread of Ho–Ge bond distances ranging from 2.99–3.30 Å. In the second Ho site, Ho is bonded in a 7-coordinate geometry to four equivalent Rh and five Ge atoms. There are a spread of Ho–Rh bond distances ranging from 2.90–3.13 Å. There are a spread of Ho–Ge bond distances ranging from 2.98–3.34 Å. Rh is bonded in a 9-coordinate geometry to six Ho and three Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.54–2.60 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Ho and two equivalent Rh atoms. In the second Ge site, Ge is bonded in a 12-coordinate geometry to eight Ho and four equivalent Rh atoms.

36 MATERIALS SCIENCE↗