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 1,423 records · Page 79

Materials Data on Tb3Ge13Os4 by Materials Project

Tb3Os4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Tb is bonded in a 8-coordinate geometry to four equivalent Os and twelve equivalent Ge atoms. All Tb–Os bond lengths are 3.22 Å. There are eight shorter (3.20 Å) and four longer (3.25 Å) Tb–Ge bond lengths. Os is bonded in a 6-coordinate geometry to three equivalent Tb and six equivalent Ge atoms. All Os–Ge bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Tb, two equivalent Os, and two Ge atoms. There are one shorter (2.65 Å) and one longer (3.03 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nd3Ge13Ir4 by Materials Project

Nd3Ir4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Nd is bonded in a 8-coordinate geometry to four equivalent Ir and twelve equivalent Ge atoms. All Nd–Ir bond lengths are 3.23 Å. There are eight shorter (3.18 Å) and four longer (3.27 Å) Nd–Ge bond lengths. Ir is bonded in a 6-coordinate geometry to three equivalent Nd and six equivalent Ge atoms. All Ir–Ge bond lengths are 2.52 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to three equivalent Nd, two equivalent Ir, and two Ge atoms. There are one shorter (2.67 Å) and one longer (3.09 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on U2NiGe2Pd by Materials Project

U2PdNiGe2 crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. there are two inequivalent U sites. In the first U site, U is bonded in a 12-coordinate geometry to four equivalent Pd, two equivalent Ni, and six Ge atoms. There are two shorter (3.00 Å) and two longer (3.17 Å) U–Pd bond lengths. There are one shorter (2.93 Å) and one longer (3.07 Å) U–Ni bond lengths. There are a spread of U–Ge bond distances ranging from 3.05–3.24 Å. In the second U site, U is bonded in a 12-coordinate geometry to two equivalent Pd, four equivalent Ni, and six Ge atoms. There are one shorter (2.99 Å) and one longer (3.10 Å) U–Pd bond lengths. There are two shorter (2.96 Å) and two longer (3.27 Å) U–Ni bond lengths. There are a spread of U–Ge bond distances ranging from 2.97–3.05 Å. Pd is bonded in a 10-coordinate geometry to six U and four Ge atoms. There are a spread of Pd–Ge bond distances ranging from 2.60–2.77 Å. Ni is bonded in a 10-coordinate geometry to six U and four Ge atoms. There are a spread of Ni–Ge bond distances ranging from 2.50–2.66 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six U, two equivalent Pd, and two equivalent Ni atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six U, two equivalent Pd, and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ho3Ge13Os4 by Materials Project

Ho3Os4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Ho is bonded in a 8-coordinate geometry to four equivalent Os and twelve equivalent Ge atoms. All Ho–Os bond lengths are 3.20 Å. There are eight shorter (3.18 Å) and four longer (3.24 Å) Ho–Ge bond lengths. Os is bonded in a 6-coordinate geometry to three equivalent Ho and six equivalent Ge atoms. All Os–Ge bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Ho, two equivalent Os, and one Ge atom. The Ge–Ge bond length is 3.03 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ce3Ge13Ru4 by Materials Project

Ce3Ru4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Ce is bonded in a 8-coordinate geometry to four equivalent Ru and twelve equivalent Ge atoms. All Ce–Ru bond lengths are 3.21 Å. There are eight shorter (3.17 Å) and four longer (3.24 Å) Ce–Ge bond lengths. Ru is bonded in a 6-coordinate geometry to three equivalent Ce and six equivalent Ge atoms. All Ru–Ge bond lengths are 2.51 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to three equivalent Ce, two equivalent Ru, and two Ge atoms. There are one shorter (2.69 Å) and one longer (3.09 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Lu3Ge13Os4 by Materials Project

Lu3Os4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Lu is bonded in a 8-coordinate geometry to four equivalent Os and twelve equivalent Ge atoms. All Lu–Os bond lengths are 3.19 Å. There are eight shorter (3.16 Å) and four longer (3.23 Å) Lu–Ge bond lengths. Os is bonded in a 6-coordinate geometry to three equivalent Lu and six equivalent Ge atoms. All Os–Ge bond lengths are 2.49 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Lu, two equivalent Os, and one Ge atom. The Ge–Ge bond length is 3.03 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Na(GeP)3 by Materials Project

NaGe3P3 crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. Na1+ is bonded to five P3- atoms to form distorted NaP5 square pyramids that share corners with six equivalent GeP4 tetrahedra and edges with two equivalent NaP5 square pyramids. There are a spread of Na–P bond distances ranging from 2.96–3.14 Å. There are three inequivalent Ge+2.67+ sites. In the first Ge+2.67+ site, Ge+2.67+ is bonded in a water-like geometry to two equivalent P3- atoms. Both Ge–P bond lengths are 2.42 Å. In the second Ge+2.67+ site, Ge+2.67+ is bonded in a distorted trigonal non-coplanar geometry to three P3- atoms. There are one shorter (2.39 Å) and two longer (2.41 Å) Ge–P bond lengths. In the third Ge+2.67+ site, Ge+2.67+ is bonded to four P3- atoms to form GeP4 tetrahedra that share corners with six equivalent NaP5 square pyramids and corners with two equivalent GeP4 tetrahedra. There are a spread of Ge–P bond distances ranging from 2.34–2.36 Å. There are three inequivalent P3- sites. In the first P3- site, P3- is bonded to one Na1+ and three Ge+2.67+ atoms to form distorted PNaGe3 trigonal pyramids that share corners with four equivalent PNa2Ge3 trigonal bipyramids and corners with two equivalent PNaGe3 trigonal pyramids. In the second P3- site, P3- is bonded in a distorted pentagonal planar geometry to two equivalent Na1+ and three Ge+2.67+ atoms. In the third P3- site, P3- is bonded to two equivalent Na1+ and three Ge+2.67+ atoms to form distorted PNa2Ge3 trigonal bipyramids that share corners with four equivalent PNaGe3 trigonal pyramids and edges with two equivalent PNa2Ge3 trigonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on MgGe5 by Materials Project

MgGe5 crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of one MgGe5 sheet oriented in the (0, 0, 1) direction. Mg is bonded in a 10-coordinate geometry to ten Ge atoms. There are a spread of Mg–Ge bond distances ranging from 2.98–3.07 Å. There are five inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to two equivalent Mg atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to two equivalent Mg atoms. In the third Ge site, Ge is bonded in a 1-coordinate geometry to one Mg atom. In the fourth Ge site, Ge is bonded in a 6-coordinate geometry to two equivalent Mg atoms. In the fifth Ge site, Ge is bonded in a 10-coordinate geometry to three equivalent Mg atoms.

36 MATERIALS SCIENCE↗

Materials Data on Nd3NiGe2 by Materials Project

Nd3NiGe2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Nd sites. In the first Nd site, Nd is bonded in a 6-coordinate geometry to one Ni and five Ge atoms. The Nd–Ni bond length is 2.95 Å. There are four shorter (3.11 Å) and one longer (3.34 Å) Nd–Ge bond lengths. In the second Nd site, Nd is bonded in a 7-coordinate geometry to two equivalent Ni and five Ge atoms. Both Nd–Ni bond lengths are 2.92 Å. There are a spread of Nd–Ge bond distances ranging from 3.09–3.77 Å. In the third Nd site, Nd is bonded in a 8-coordinate geometry to three equivalent Ni and five Ge atoms. There are one shorter (3.06 Å) and two longer (3.12 Å) Nd–Ni bond lengths. There are a spread of Nd–Ge bond distances ranging from 3.08–3.18 Å. Ni is bonded in a 9-coordinate geometry to six Nd and three Ge atoms. There are one shorter (2.56 Å) and two longer (2.57 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 seven Nd and two equivalent Ni atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to eight Nd and one Ni atom.

36 MATERIALS SCIENCE↗

Materials Data on Gd3Co4Ge13 by Materials Project

Gd3Co4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Gd is bonded in a 12-coordinate geometry to four equivalent Co and twelve equivalent Ge atoms. All Gd–Co bond lengths are 3.10 Å. All Gd–Ge bond lengths are 3.09 Å. Co is bonded in a 6-coordinate geometry to three equivalent Gd and six equivalent Ge atoms. All Co–Ge bond lengths are 2.41 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Gd, two equivalent Co, and four Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.69–3.00 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Tm3Co4Ge13 by Materials Project

Tm3Co4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to four equivalent Co and twelve equivalent Ge atoms. All Tm–Co bond lengths are 3.09 Å. There are four shorter (3.07 Å) and eight longer (3.08 Å) Tm–Ge bond lengths. Co is bonded in a 6-coordinate geometry to three equivalent Tm and six equivalent Ge atoms. All Co–Ge bond lengths are 2.40 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Tm, two equivalent Co, and four Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.69–2.99 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Mn4FeGe3 by Materials Project

Mn4FeGe3 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Mn sites. In the first Mn site, Mn is bonded in a 8-coordinate geometry to two equivalent Fe and six Ge atoms. Both Mn–Fe bond lengths are 2.47 Å. All Mn–Ge bond lengths are 2.53 Å. In the second Mn site, Mn is bonded in a 5-coordinate geometry to five Ge atoms. There are a spread of Mn–Ge bond distances ranging from 2.45–2.69 Å. In the third Mn site, Mn is bonded in a 5-coordinate geometry to five Ge atoms. There are a spread of Mn–Ge bond distances ranging from 2.45–2.70 Å. Fe is bonded in a 8-coordinate geometry to two equivalent Mn and six Ge atoms. All Fe–Ge bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Mn and two equivalent Fe atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to seven Mn and two equivalent Fe atoms.

36 MATERIALS SCIENCE↗

Materials Data on Gd3Ge13Os4 by Materials Project

Gd3Os4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Gd is bonded in a 8-coordinate geometry to four equivalent Os and twelve equivalent Ge atoms. All Gd–Os bond lengths are 3.21 Å. There are eight shorter (3.18 Å) and four longer (3.25 Å) Gd–Ge bond lengths. Os is bonded in a 6-coordinate geometry to three equivalent Gd and six equivalent Ge atoms. All Os–Ge bond lengths are 2.51 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Gd, two equivalent Os, and two Ge atoms. There are one shorter (2.66 Å) and one longer (3.06 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Y3Ge13Rh4 by Materials Project

Y3Rh4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Y is bonded in a 8-coordinate geometry to four equivalent Rh and twelve equivalent Ge atoms. All Y–Rh bond lengths are 3.19 Å. There are eight shorter (3.13 Å) and four longer (3.24 Å) Y–Ge bond lengths. Rh is bonded in a 6-coordinate geometry to three equivalent Y and six equivalent Ge atoms. All Rh–Ge bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Y, two equivalent Rh, and one Ge atom. The Ge–Ge bond length is 3.10 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on BaGe3Pd by Materials Project

BaPdGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Ba is bonded in a 12-coordinate geometry to five equivalent Pd and twelve Ge atoms. There are four shorter (3.61 Å) and one longer (3.76 Å) Ba–Pd bond lengths. There are a spread of Ba–Ge bond distances ranging from 3.43–3.54 Å. Pd 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 (2.63 Å) Pd–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 Pd, 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 Ba, one Pd, and four equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on BaGe3Rh by Materials Project

BaRhGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Ba is bonded in a 12-coordinate geometry to five equivalent Rh and twelve Ge atoms. There are four shorter (3.59 Å) and one longer (3.64 Å) Ba–Rh bond lengths. There are a spread of Ba–Ge bond distances ranging from 3.37–3.49 Å. Rh is bonded in a 5-coordinate geometry to five equivalent Ba and five Ge atoms. All Rh–Ge bond lengths are 2.52 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent Ba, one Rh, and four equivalent Ge atoms. All Ge–Ge bond lengths are 2.81 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Ba, two equivalent Rh, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaGe3Ru by Materials Project

LaRuGe3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to five equivalent Ru and twelve Ge atoms. There are one shorter (3.49 Å) and four longer (3.54 Å) La–Ru bond lengths. There are a spread of La–Ge bond distances ranging from 3.24–3.46 Å. Ru is bonded in a 5-coordinate geometry to five equivalent La and five Ge atoms. There are one shorter (2.39 Å) and four longer (2.46 Å) Ru–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to four equivalent La, one Ru, and four equivalent Ge atoms. All Ge–Ge bond lengths are 2.78 Å. In the second Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent La, two equivalent Ru, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ce3NiGe2 by Materials Project

Ce3NiGe2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Ce sites. In the first Ce site, Ce is bonded in a 6-coordinate geometry to one Ni and five Ge atoms. The Ce–Ni bond length is 2.94 Å. There are a spread of Ce–Ge bond distances ranging from 3.03–3.26 Å. In the second Ce site, Ce is bonded in a 7-coordinate geometry to two equivalent Ni and five Ge atoms. Both Ce–Ni bond lengths are 2.90 Å. There are a spread of Ce–Ge bond distances ranging from 3.07–3.58 Å. In the third Ce site, Ce is bonded in a 8-coordinate geometry to three equivalent Ni and five Ge atoms. There are two shorter (3.02 Å) and one longer (3.03 Å) Ce–Ni bond lengths. There are a spread of Ce–Ge bond distances ranging from 3.03–3.11 Å. Ni is bonded in a 9-coordinate geometry to six Ce and three Ge atoms. There are one shorter (2.51 Å) and two longer (2.52 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 eight Ce and one Ni atom. In the second Ge site, Ge is bonded in a 9-coordinate geometry to seven Ce and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗