Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ge-Nd-Rh”

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.

6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Nd2Ge5Rh3 by Materials Project

Nd2Rh3Ge5 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Nd is bonded in a 1-coordinate geometry to seven Rh and ten Ge atoms. There are a spread of Nd–Rh bond distances ranging from 3.20–3.55 Å. There are a spread of Nd–Ge bond distances ranging from 3.03–3.32 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 6-coordinate geometry to four equivalent Nd and six Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.53–2.72 Å. In the second Rh site, Rh is bonded in a 5-coordinate geometry to five equivalent Nd and five Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.42–2.53 Å. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Nd and four equivalent Rh atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Nd, three Rh, and two Ge atoms. There are one shorter (2.69 Å) and one longer (2.70 Å) Ge–Ge bond lengths. In the third Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Nd, three Rh, and two equivalent Ge atoms. In the fourth Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Nd, three Rh, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdGeRh by Materials Project

NdRhGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Nd is bonded in a 9-coordinate geometry to four equivalent Rh and five equivalent Ge atoms. There are a spread of Nd–Rh bond distances ranging from 3.05–3.15 Å. All Nd–Ge bond lengths are 3.13 Å. Rh is bonded in a 8-coordinate geometry to four equivalent Nd and four equivalent Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.58–2.67 Å. Ge is bonded in a 10-coordinate geometry to five equivalent Nd and four equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nd4Ge3Rh4 by Materials Project

Nd4Rh4Ge3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Nd sites. In the first Nd site, Nd is bonded in a 11-coordinate geometry to seven Rh and four Ge atoms. There are a spread of Nd–Rh bond distances ranging from 3.04–3.42 Å. There are a spread of Nd–Ge bond distances ranging from 3.10–3.42 Å. In the second Nd site, Nd is bonded in a 10-coordinate geometry to five Rh and five Ge atoms. There are a spread of Nd–Rh bond distances ranging from 2.94–3.15 Å. There are a spread of Nd–Ge bond distances ranging from 3.07–3.40 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 9-coordinate geometry to six Nd and three Ge atoms. There are one shorter (2.64 Å) and two longer (2.65 Å) Rh–Ge bond lengths. In the second Rh site, Rh is bonded in a 9-coordinate geometry to six Nd and three equivalent Ge atoms. There are one shorter (2.50 Å) and two longer (2.53 Å) Rh–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded to eight Nd and four equivalent Rh atoms to form a mixture of distorted face and edge-sharing GeNd8Rh4 cuboctahedra. In the second Ge site, Ge is bonded in a 9-coordinate geometry to five Nd and four Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nd(GeRh)2 by Materials Project

NdRh2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Nd is bonded in a 8-coordinate geometry to eight equivalent Rh and eight equivalent Ge atoms. All Nd–Rh bond lengths are 3.37 Å. All Nd–Ge bond lengths are 3.24 Å. Rh is bonded to four equivalent Nd and four equivalent Ge atoms to form a mixture of distorted edge, corner, and face-sharing RhNd4Ge4 tetrahedra. All Rh–Ge bond lengths are 2.48 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Nd, four equivalent Rh, and one Ge atom. The Ge–Ge bond length is 2.62 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdGe2Rh by Materials Project

NdRhGe2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Nd is bonded in a 8-coordinate geometry to four equivalent Rh and ten Ge atoms. All Nd–Rh bond lengths are 3.33 Å. There are a spread of Nd–Ge bond distances ranging from 3.25–3.32 Å. Rh is bonded in a 5-coordinate geometry to four equivalent Nd and five Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.40–2.49 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a distorted single-bond geometry to six equivalent Nd, one Rh, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.59 Å. In the second Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Nd and four equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nd2Ge3Rh by Materials Project

Nd2RhGe3 is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. there are two inequivalent Nd sites. In the first Nd site, Nd is bonded to two equivalent Rh and ten Ge atoms to form a mixture of edge and face-sharing NdGe10Rh2 cuboctahedra. Both Nd–Rh bond lengths are 3.17 Å. There are a spread of Nd–Ge bond distances ranging from 3.25–3.32 Å. In the second Nd site, Nd is bonded to four equivalent Rh and eight Ge atoms to form a mixture of edge and face-sharing NdGe8Rh4 cuboctahedra. All Nd–Rh bond lengths are 3.25 Å. There are a spread of Nd–Ge bond distances ranging from 3.16–3.28 Å. Rh is bonded in a 3-coordinate geometry to six Nd and three Ge atoms. All Rh–Ge bond lengths are 2.44 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Nd and three Ge atoms. There are one shorter (2.50 Å) and two longer (2.53 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 2-coordinate geometry to six Nd, two equivalent Rh, and one Ge atom. In the third Ge site, Ge is bonded in a 1-coordinate geometry to six Nd, one Rh, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗