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 1,315 records · Page 73

Materials Data on Ge2Mo by Materials Project

MoGe2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Mo is bonded in a 9-coordinate geometry to nine Ge atoms. There are a spread of Mo–Ge bond distances ranging from 2.60–2.90 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to five equivalent Mo and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.73 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Mo and four Ge atoms. Both Ge–Ge bond lengths are 2.56 Å.

36 MATERIALS SCIENCE↗

Materials Data on LiCaGe2 by Materials Project

LiCaGe2 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 2.63–2.79 Å. Ca is bonded in a 6-coordinate geometry to nine Ge atoms. There are a spread of Ca–Ge bond distances ranging from 3.11–3.40 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 Ca, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.51 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to two equivalent Li, five equivalent Ca, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on NdCoGe3 by Materials Project

NdCoGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Nd is bonded in a 12-coordinate geometry to five equivalent Co and twelve Ge atoms. There are one shorter (3.31 Å) and four longer (3.48 Å) Nd–Co bond lengths. There are a spread of Nd–Ge bond distances ranging from 3.12–3.36 Å. Co is bonded in a 5-coordinate geometry to five equivalent Nd and five Ge atoms. There are one shorter (2.29 Å) and four longer (2.35 Å) Co–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Nd, two equivalent Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.79 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent Nd, one Co, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on ThGe2 by Materials Project

ThGe2 is Zirconium Disilicide structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Th is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Th–Ge bond distances ranging from 3.07–3.37 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to six equivalent Th and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.61 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Th and four equivalent Ge atoms. All Ge–Ge bond lengths are 2.90 Å.

36 MATERIALS SCIENCE↗

Materials Data on UGe2 by Materials Project

UGe2 is Zirconium Disilicide structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. U is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of U–Ge bond distances ranging from 2.95–3.19 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to six equivalent U and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.70 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent U and four equivalent Ge atoms. All Ge–Ge bond lengths are 2.89 Å.

36 MATERIALS SCIENCE↗

Materials Data on Ge3Os2 by Materials Project

Os2Ge3 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are three inequivalent Os sites. In the first Os site, Os is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Os–Ge bond distances ranging from 2.46–2.63 Å. In the second Os site, Os is bonded to six Ge atoms to form distorted edge-sharing OsGe6 octahedra. There are a spread of Os–Ge bond distances ranging from 2.44–2.57 Å. In the third Os site, Os is bonded in a 8-coordinate geometry to eight Ge atoms. There are a spread of Os–Ge bond distances ranging from 2.48–2.88 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to four Os atoms. In the second Ge site, Ge is bonded in a 5-coordinate geometry to five Os atoms. In the third Ge site, Ge is bonded in a 5-coordinate geometry to five Os atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaFeGe3 by Materials Project

LaFeGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to five equivalent Fe and twelve Ge atoms. There are one shorter (3.35 Å) and four longer (3.50 Å) La–Fe bond lengths. There are a spread of La–Ge bond distances ranging from 3.15–3.37 Å. Fe is bonded in a 5-coordinate geometry to five equivalent La and five Ge atoms. There are one shorter (2.28 Å) and four longer (2.36 Å) Fe–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent La, two equivalent Fe, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.84 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent La, one Fe, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaGe2 by Materials Project

LaGe2 is hexagonal omega structure-like structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. La is bonded to twelve Ge atoms to form a mixture of edge and face-sharing LaGe12 cuboctahedra. There are a spread of La–Ge bond distances ranging from 3.31–3.42 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent La and three Ge atoms. There are two shorter (2.55 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 six equivalent La and three Ge atoms. Both Ge–Ge bond lengths are 2.55 Å.

36 MATERIALS SCIENCE↗

Materials Data on LaCoGe3 by Materials Project

LaCoGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to five equivalent Co and twelve Ge atoms. There are one shorter (3.33 Å) and four longer (3.49 Å) La–Co bond lengths. There are a spread of La–Ge bond distances ranging from 3.16–3.36 Å. Co is bonded in a 5-coordinate geometry to five equivalent La and five Ge atoms. There are one shorter (2.31 Å) and four longer (2.37 Å) Co–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent La, two equivalent Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.78 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent La, one Co, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on LiCeGe2 by Materials Project

LiCeGe2 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 2.56–2.75 Å. Ce is bonded in a 6-coordinate geometry to nine Ge atoms. There are a spread of Ce–Ge bond distances ranging from 3.10–3.46 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to two equivalent Li, five equivalent Ce, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.55 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Li, four equivalent Ce, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeFeGe3 by Materials Project

CeFeGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to five equivalent Fe and twelve Ge atoms. There are one shorter (3.27 Å) and four longer (3.48 Å) Ce–Fe bond lengths. There are a spread of Ce–Ge bond distances ranging from 3.09–3.38 Å. Fe is bonded in a 5-coordinate geometry to five equivalent Ce and five Ge atoms. There are one shorter (2.26 Å) and four longer (2.33 Å) Fe–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Ce, two equivalent Fe, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.80 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent Ce, one Fe, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaGe3Ir by Materials Project

LaIrGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to five equivalent Ir and twelve Ge atoms. There are one shorter (3.47 Å) and four longer (3.56 Å) La–Ir bond lengths. There are a spread of La–Ge bond distances ranging from 3.27–3.49 Å. Ir is bonded in a 5-coordinate geometry to five equivalent La and five Ge atoms. There are one shorter (2.42 Å) and four longer (2.48 Å) Ir–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent La, two equivalent Ir, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.76 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent La, one Ir, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeGe2 by Materials Project

CeGe2 is hexagonal omega structure-like structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Ce is bonded to twelve Ge atoms to form a mixture of edge and face-sharing CeGe12 cuboctahedra. There are a spread of Ce–Ge bond distances ranging from 3.20–3.41 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Ce and three Ge atoms. There are two shorter (2.51 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 six equivalent Ce and three Ge atoms. Both Ge–Ge bond lengths are 2.50 Å.

36 MATERIALS SCIENCE↗

Materials Data on CeCoGe3 by Materials Project

CeCoGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to five equivalent Co and twelve Ge atoms. There are one shorter (3.22 Å) and four longer (3.48 Å) Ce–Co bond lengths. There are a spread of Ce–Ge bond distances ranging from 3.11–3.35 Å. Co is bonded in a 5-coordinate geometry to five equivalent Ce and five Ge atoms. There are one shorter (2.28 Å) and four longer (2.33 Å) Co–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Ce, two equivalent Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.76 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent Ce, one Co, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Lu3Ge13Rh4 by Materials Project

Lu3Rh4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Lu is bonded in a 8-coordinate geometry to four equivalent Rh and twelve equivalent Ge atoms. All Lu–Rh bond lengths are 3.18 Å. There are eight shorter (3.11 Å) and four longer (3.23 Å) Lu–Ge bond lengths. Rh is bonded in a 6-coordinate geometry to three equivalent Lu and six equivalent Ge atoms. All Rh–Ge bond lengths are 2.49 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms. All Ge–Ge bond lengths are 3.08 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Lu, two equivalent Rh, and one Ge atom.

36 MATERIALS SCIENCE↗

Materials Data on Ge3Ru2 by Materials Project

Ru2Ge3 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are three inequivalent Ru sites. In the first Ru site, Ru is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Ru–Ge bond distances ranging from 2.45–2.69 Å. In the second Ru site, Ru is bonded to six Ge atoms to form distorted edge-sharing RuGe6 octahedra. There are a spread of Ru–Ge bond distances ranging from 2.42–2.57 Å. In the third Ru site, Ru is bonded in a 8-coordinate geometry to eight Ge atoms. There are a spread of Ru–Ge bond distances ranging from 2.45–2.90 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to four Ru atoms. In the second Ge site, Ge is bonded in a 5-coordinate geometry to five Ru atoms. In the third Ge site, Ge is bonded in a 5-coordinate geometry to five Ru atoms.

36 MATERIALS SCIENCE↗

Materials Data on BaGe3Pt by Materials Project

BaPtGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Ba is bonded in a 12-coordinate geometry to five equivalent Pt and twelve Ge atoms. There are four shorter (3.61 Å) and one longer (3.67 Å) Ba–Pt bond lengths. There are a spread of Ba–Ge bond distances ranging from 3.43–3.51 Å. Pt is bonded in a 5-coordinate geometry to five equivalent Ba and five Ge atoms. There are four shorter (2.56 Å) and one longer (2.58 Å) Pt–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Ba, two equivalent Pt, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.77 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent Ba, one Pt, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on ZrGe2 by Materials Project

ZrGe2 is Zirconium Disilicide structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Zr is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Zr–Ge bond distances ranging from 2.79–3.14 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to six equivalent Zr and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.63 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Zr and four equivalent Ge atoms. All Ge–Ge bond lengths are 2.71 Å.

36 MATERIALS SCIENCE↗