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 1,747 records · Page 97
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ho3Mn3Ga2Ge by Materials Project

Ho3Mn3GeGa2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 5-coordinate geometry to six Mn, four equivalent Ga, and one Ge atom. All Ho–Mn bond lengths are 3.24 Å. All Ho–Ga bond lengths are 2.94 Å. The Ho–Ge bond length is 2.92 Å. In the second Ho site, Ho is bonded in a 5-coordinate geometry to six Mn, four equivalent Ga, and one Ge atom. There are four shorter (3.23 Å) and two longer (3.24 Å) Ho–Mn bond lengths. All Ho–Ga bond lengths are 2.94 Å. The Ho–Ge bond length is 2.92 Å. There are two inequivalent Mn sites. In the first Mn site, Mn is bonded in a 12-coordinate geometry to six Ho, two equivalent Mn, two equivalent Ga, and two equivalent Ge atoms. Both Mn–Mn bond lengths are 2.83 Å. Both Mn–Ga bond lengths are 2.80 Å. Both Mn–Ge bond lengths are 2.59 Å. In the second Mn site, Mn is bonded in a 12-coordinate geometry to six Ho, two Mn, two equivalent Ga, and two equivalent Ge atoms. The Mn–Mn bond length is 2.83 Å. Both Mn–Ga bond lengths are 2.80 Å. Both Mn–Ge bond lengths are 2.59 Å. Ga is bonded in a 9-coordinate geometry to six Ho and three Mn atoms. Ge is bonded in a 9-coordinate geometry to three Ho and six Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuGe7Rh3 by Materials Project

EuRh3Ge7 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Eu is bonded in a 6-coordinate geometry to six equivalent Rh and twelve equivalent Ge atoms. All Eu–Rh bond lengths are 3.24 Å. There are six shorter (3.28 Å) and six longer (3.30 Å) Eu–Ge bond lengths. Rh is bonded in a 9-coordinate geometry to two equivalent Eu and seven Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.53–2.65 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a trigonal planar geometry to three equivalent Rh atoms. In the second Ge site, Ge is bonded in a 3-coordinate geometry to two equivalent Eu and three equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CrFeGe2 by Materials Project

CrFeGe2 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Cr is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Cr–Ge bond distances ranging from 2.42–2.66 Å. Fe is bonded in a 4-coordinate geometry to seven Ge atoms. There are a spread of Fe–Ge bond distances ranging from 2.38–2.65 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 7-coordinate geometry to three equivalent Cr and four equivalent Fe atoms. In the second Ge site, Ge is bonded in a 7-coordinate geometry to four equivalent Cr and three equivalent Fe atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al4Ge2W3 by Materials Project

W3Al4Ge2 is Titanium Disilicide-derived structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are two inequivalent W sites. In the first W site, W is bonded in a 10-coordinate geometry to six Al and four equivalent Ge atoms. There are a spread of W–Al bond distances ranging from 2.64–2.87 Å. There are a spread of W–Ge bond distances ranging from 2.63–2.81 Å. In the second W site, W is bonded in a distorted q6 geometry to eight Al and two equivalent Ge atoms. There are a spread of W–Al bond distances ranging from 2.65–2.82 Å. Both W–Ge bond lengths are 2.61 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded in a 10-coordinate geometry to five W and five Al atoms. There are a spread of Al–Al bond distances ranging from 2.61–2.81 Å. In the second Al site, Al is bonded in a 10-coordinate geometry to five W, one Al, and four equivalent Ge atoms. There are a spread of Al–Ge bond distances ranging from 2.66–2.85 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to five W, three equivalent Al, and two equivalent Ge atoms. Both Al–Ge bond lengths are 2.63 Å. Ge is bonded in a 10-coordinate geometry to five W and five Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K3Ge7O20 by Materials Project

K3Ge7O20 crystallizes in the cubic P-43m space group. The structure is three-dimensional. K is bonded in a 12-coordinate geometry to twelve O atoms. There are eight shorter (3.15 Å) and four longer (3.17 Å) K–O bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded to six O atoms to form GeO6 octahedra that share corners with three equivalent GeO4 tetrahedra and edges with three equivalent GeO6 octahedra. There is three shorter (1.85 Å) and three longer (2.00 Å) Ge–O bond length. In the second Ge site, Ge is bonded to four equivalent O atoms to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. All Ge–O bond lengths are 1.76 Å. There are three inequivalent O sites. In the first O site, O is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ge atoms. In the second O site, O is bonded in a bent 120 degrees geometry to two equivalent K and two Ge atoms. In the third O site, O is bonded in a trigonal planar geometry to three equivalent K atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er2Al4CoGe2 by Materials Project

Er2CoAl4Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Er is bonded in a 5-coordinate geometry to four equivalent Al and five equivalent Ge atoms. All Er–Al bond lengths are 3.09 Å. All Er–Ge bond lengths are 2.93 Å. Co is bonded in a body-centered cubic geometry to eight Al atoms. All Co–Al bond lengths are 2.42 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded in a 4-coordinate geometry to two equivalent Er, two equivalent Co, five Al, and two equivalent Ge atoms. There are one shorter (2.57 Å) and four longer (2.91 Å) Al–Al bond lengths. Both Al–Ge bond lengths are 2.80 Å. In the second Al site, Al is bonded in a 4-coordinate geometry to two equivalent Er, two equivalent Co, five Al, and two equivalent Ge atoms. Both Al–Er bond lengths are 3.09 Å. Both Al–Co bond lengths are 2.42 Å. There are one shorter (2.57 Å) and four longer (2.91 Å) Al–Al bond lengths. Both Al–Ge bond lengths are 2.80 Å. In the third Al site, Al is bonded in a 4-coordinate geometry to two equivalent Er, two equivalent Co, five Al, and two equivalent Ge atoms. Both Al–Er bond lengths are 3.09 Å. The Al–Al bond length is 2.57 Å. Both Al–Ge bond lengths are 2.80 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Er and four Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaNi9Ge4 by Materials Project

LaNi9Ge4 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. La is bonded in a 8-coordinate geometry to sixteen Ni and eight equivalent Ge atoms. There are eight shorter (3.25 Å) and eight longer (3.42 Å) La–Ni bond lengths. All La–Ge bond lengths are 3.33 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded to two equivalent La, six Ni, and four equivalent Ge atoms to form a mixture of distorted corner and face-sharing NiLa2Ni6Ge4 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.43–2.58 Å. There are two shorter (2.53 Å) and two longer (2.59 Å) Ni–Ge bond lengths. In the second Ni site, Ni is bonded in a 4-coordinate geometry to two equivalent La, three Ni, and four equivalent Ge atoms. The Ni–Ni bond length is 2.58 Å. There are a spread of Ni–Ge bond distances ranging from 2.38–2.52 Å. In the third Ni site, Ni is bonded to eight Ni and four equivalent Ge atoms to form a mixture of distorted corner and face-sharing NiNi8Ge4 cuboctahedra. All Ni–Ge bond lengths are 2.41 Å. Ge is bonded in a 12-coordinate geometry to two equivalent La and nine Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnGeRh by Materials Project

MnRhGe crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mn is bonded in a 11-coordinate geometry to six equivalent Rh and five Ge atoms. There are two shorter (2.84 Å) and four longer (2.97 Å) Mn–Rh bond lengths. All Mn–Ge bond lengths are 2.69 Å. Rh is bonded in a 10-coordinate geometry to six equivalent Mn and four Ge atoms. There are two shorter (2.47 Å) and two longer (2.48 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 six equivalent Mn and three equivalent Rh atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Mn and six equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnNi9Ge2 by Materials Project

Ni9ZnGe2 is beta Cu3Ti-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are five inequivalent Ni sites. In the first Ni site, Ni is bonded to eight Ni, two equivalent Zn, and two equivalent Ge atoms to form distorted NiZn2Ni8Ge2 cuboctahedra that share corners with twelve NiZn2Ni8Ge2 cuboctahedra, edges with four equivalent ZnNi12 cuboctahedra, edges with four equivalent GeNi12 cuboctahedra, edges with sixteen NiZn2Ni8Ge2 cuboctahedra, faces with two equivalent ZnNi12 cuboctahedra, faces with two equivalent GeNi12 cuboctahedra, and faces with fourteen NiZn2Ni8Ge2 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.47–2.58 Å. Both Ni–Zn bond lengths are 2.51 Å. Both Ni–Ge bond lengths are 2.50 Å. In the second Ni site, Ni is bonded to eight Ni and four equivalent Ge atoms to form NiNi8Ge4 cuboctahedra that share corners with twelve NiZn2Ni8Ge2 cuboctahedra, edges with eight equivalent GeNi12 cuboctahedra, edges with sixteen NiNi8Ge4 cuboctahedra, faces with four equivalent GeNi12 cuboctahedra, and faces with fourteen NiNi8Ge4 cuboctahedra. There are four shorter (2.51 Å) and four longer (2.58 Å) Ni–Ni bond lengths. All Ni–Ge bond lengths are 2.49 Å. In the third Ni site, Ni is bonded to eight Ni, two equivalent Zn, and two equivalent Ge atoms to form distorted NiZn2Ni8Ge2 cuboctahedra that share corners with twelve NiNi8Ge4 cuboctahedra, edges with four equivalent ZnNi12 cuboctahedra, edges with four equivalent GeNi12 cuboctahedra, edges with sixteen NiZn2Ni8Ge2 cuboctahedra, faces with two equivalent ZnNi12 cuboctahedra, faces with two equivalent GeNi12 cuboctahedra, and faces with fourteen NiZn2Ni8Ge2 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.47–2.58 Å. Both Ni–Zn bond lengths are 2.51 Å. Both Ni–Ge bond lengths are 2.50 Å. In the fourth Ni site, Ni is bonded to eight equivalent Ni and four equivalent Zn atoms to form NiZn4Ni8 cuboctahedra that share corners with four equivalent NiZn4Ni8 cuboctahedra, corners with eight equivalent GeNi12 cuboctahedra, edges with twenty-four NiNi8Ge4 cuboctahedra, faces with two equivalent GeNi12 cuboctahedra, faces with four equivalent ZnNi12 cuboctahedra, and faces with twelve NiZn4Ni8 cuboctahedra. All Ni–Zn bond lengths are 2.58 Å. In the fifth Ni site, Ni is bonded to eight Ni and four equivalent Ge atoms to form NiNi8Ge4 cuboctahedra that share corners with four equivalent NiNi8Ge4 cuboctahedra, corners with four equivalent ZnNi12 cuboctahedra, corners with four equivalent GeNi12 cuboctahedra, edges with twenty-four NiZn4Ni8 cuboctahedra, a faceface with one ZnNi12 cuboctahedra, faces with five equivalent GeNi12 cuboctahedra, and faces with twelve NiZn2Ni8Ge2 cuboctahedra. All Ni–Ge bond lengths are 2.58 Å. Zn is bonded to twelve Ni atoms to form ZnNi12 cuboctahedra that share corners with four equivalent ZnNi12 cuboctahedra, corners with eight equivalent NiNi8Ge4 cuboctahedra, edges with eight equivalent GeNi12 cuboctahedra, edges with sixteen equivalent NiZn2Ni8Ge2 cuboctahedra, faces with four equivalent ZnNi12 cuboctahedra, and faces with fourteen NiZn4Ni8 cuboctahedra. Ge is bonded to twelve Ni atoms to form GeNi12 cuboctahedra that share corners with four equivalent GeNi12 cuboctahedra, corners with eight NiZn4Ni8 cuboctahedra, edges with four equivalent ZnNi12 cuboctahedra, edges with four equivalent GeNi12 cuboctahedra, edges with sixteen NiZn2Ni8Ge2 cuboctahedra, faces with four equivalent GeNi12 cuboctahedra, and faces with fourteen NiZn2Ni8Ge2 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeCo9Ge4 by Materials Project

CeCo9Ge4 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Ce is bonded in a 8-coordinate geometry to sixteen Co and eight equivalent Ge atoms. There are eight shorter (3.23 Å) and eight longer (3.38 Å) Ce–Co bond lengths. All Ce–Ge bond lengths are 3.26 Å. There are three inequivalent Co sites. In the first Co site, Co is bonded in a cuboctahedral geometry to eight Co and four equivalent Ge atoms. There are four shorter (2.42 Å) and four longer (2.51 Å) Co–Co bond lengths. All Co–Ge bond lengths are 2.44 Å. In the second Co site, Co is bonded in a 12-coordinate geometry to two equivalent Ce, six Co, and four equivalent Ge atoms. There are a spread of Co–Co bond distances ranging from 2.34–2.61 Å. There are two shorter (2.53 Å) and two longer (2.60 Å) Co–Ge bond lengths. In the third Co site, Co is bonded in a 4-coordinate geometry to two equivalent Ce, three Co, and four equivalent Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.34–2.45 Å. Ge is bonded in a 11-coordinate geometry to two equivalent Ce and nine Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YbCdGe by Materials Project

YbCdGe crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Yb is bonded in a 5-coordinate geometry to six equivalent Cd and five Ge atoms. There are two shorter (3.24 Å) and four longer (3.49 Å) Yb–Cd bond lengths. There are one shorter (3.08 Å) and four longer (3.12 Å) Yb–Ge bond lengths. Cd is bonded in a 12-coordinate geometry to six equivalent Yb, two equivalent Cd, and four Ge atoms. Both Cd–Cd bond lengths are 3.23 Å. There are two shorter (2.76 Å) and two longer (2.90 Å) Cd–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Yb and six equivalent Cd atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Yb and three equivalent Cd atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu2Zn3Ge by Materials Project

Eu2Zn3Ge crystallizes in the orthorhombic Pmc2_1 space group. The structure is three-dimensional. there are two inequivalent Eu sites. In the first Eu site, Eu is bonded in a 12-coordinate geometry to eight Zn and four equivalent Ge atoms. There are a spread of Eu–Zn bond distances ranging from 3.16–3.39 Å. There are two shorter (3.14 Å) and two longer (3.35 Å) Eu–Ge bond lengths. In the second Eu site, Eu is bonded in a 12-coordinate geometry to ten Zn and two equivalent Ge atoms. There are a spread of Eu–Zn bond distances ranging from 3.11–3.38 Å. There are one shorter (3.26 Å) and one longer (3.30 Å) Eu–Ge bond lengths. There are three inequivalent Zn sites. In the first Zn site, Zn is bonded in a 2-coordinate geometry to six Eu, two equivalent Zn, and two equivalent Ge atoms. There are one shorter (2.66 Å) and one longer (2.87 Å) Zn–Zn bond lengths. Both Zn–Ge bond lengths are 2.67 Å. In the second Zn site, Zn is bonded in a 10-coordinate geometry to six Eu and four Zn atoms. Both Zn–Zn bond lengths are 2.63 Å. In the third Zn site, Zn is bonded in a 2-coordinate geometry to six Eu, two equivalent Zn, and two equivalent Ge atoms. There are one shorter (2.69 Å) and one longer (2.84 Å) Zn–Ge bond lengths. Ge is bonded in a 10-coordinate geometry to six Eu and four Zn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce5GeSb2 by Materials Project

Ce5GeSb2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are four inequivalent Ce sites. In the first Ce site, Ce is bonded in a 6-coordinate geometry to two equivalent Ge and four equivalent Sb atoms. There are one shorter (3.05 Å) and one longer (3.62 Å) Ce–Ge bond lengths. There are two shorter (3.22 Å) and two longer (3.24 Å) Ce–Sb bond lengths. In the second Ce site, Ce is bonded to one Ge and four equivalent Sb atoms to form a mixture of distorted edge and corner-sharing CeGeSb4 square pyramids. The Ce–Ge bond length is 3.16 Å. There are two shorter (3.25 Å) and two longer (3.26 Å) Ce–Sb bond lengths. In the third Ce site, Ce is bonded to one Ge and four equivalent Sb atoms to form a mixture of distorted edge and corner-sharing CeGeSb4 trigonal bipyramids. The Ce–Ge bond length is 2.98 Å. There are two shorter (3.23 Å) and two longer (3.27 Å) Ce–Sb bond lengths. In the fourth Ce site, Ce is bonded in a 5-coordinate geometry to two equivalent Ge and three equivalent Sb atoms. There are one shorter (2.99 Å) and one longer (3.18 Å) Ce–Ge bond lengths. There are a spread of Ce–Sb bond distances ranging from 3.37–3.41 Å. Ge is bonded in a 7-coordinate geometry to eight Ce atoms. Sb is bonded in a 9-coordinate geometry to nine Ce atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiTbGe by Materials Project

LiTbGe crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Li is bonded to four Ge atoms to form a mixture of distorted corner and edge-sharing LiGe4 tetrahedra. There are two shorter (2.72 Å) and two longer (2.78 Å) Li–Ge bond lengths. Tb is bonded in a 5-coordinate geometry to five Ge atoms. There are one shorter (2.99 Å) and four longer (3.02 Å) Tb–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 Li and three equivalent Tb atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Li and six equivalent Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn5Si2Ge by Materials Project

Mn5GeSi2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are five inequivalent Mn sites. In the first Mn site, Mn is bonded in a 6-coordinate geometry to two equivalent Ge and four Si atoms. There are one shorter (2.48 Å) and one longer (2.49 Å) Mn–Ge bond lengths. There are a spread of Mn–Si bond distances ranging from 2.43–2.47 Å. In the second Mn site, Mn is bonded in a 5-coordinate geometry to two equivalent Ge and three Si atoms. There are one shorter (2.45 Å) and one longer (2.52 Å) Mn–Ge bond lengths. There are one shorter (2.38 Å) and two longer (2.65 Å) Mn–Si bond lengths. In the third Mn site, Mn is bonded in a 5-coordinate geometry to two equivalent Ge and three Si atoms. Both Mn–Ge bond lengths are 2.42 Å. There are one shorter (2.44 Å) and two longer (2.63 Å) Mn–Si bond lengths. In the fourth Mn site, Mn is bonded in a 5-coordinate geometry to two equivalent Ge and three Si atoms. Both Mn–Ge bond lengths are 2.64 Å. There are two shorter (2.41 Å) and one longer (2.52 Å) Mn–Si bond lengths. In the fifth Mn site, Mn is bonded in a 5-coordinate geometry to five Si atoms. There are a spread of Mn–Si bond distances ranging from 2.41–2.64 Å. Ge is bonded in a 9-coordinate geometry to nine Mn atoms. There are three inequivalent Si sites. In the first Si site, Si is bonded in a 9-coordinate geometry to nine Mn atoms. In the second Si site, Si is bonded in a 9-coordinate geometry to nine Mn atoms. In the third Si site, Si is bonded in a 9-coordinate geometry to nine Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn12Ge4N3 by Materials Project

Mn12Ge4N3 crystallizes in the tetragonal P4/m space group. The structure is three-dimensional. there are four inequivalent Mn sites. In the first Mn site, Mn is bonded in a distorted bent 150 degrees geometry to two equivalent Ge and two N atoms. Both Mn–Ge bond lengths are 2.47 Å. Both Mn–N bond lengths are 1.90 Å. In the second Mn site, Mn is bonded in a single-bond geometry to four equivalent Ge and one N atom. There are two shorter (2.55 Å) and two longer (2.61 Å) Mn–Ge bond lengths. The Mn–N bond length is 1.91 Å. In the third Mn site, Mn is bonded in a single-bond geometry to four equivalent Ge and one N atom. All Mn–Ge bond lengths are 2.62 Å. The Mn–N bond length is 1.93 Å. In the fourth Mn site, Mn is bonded in a linear geometry to four equivalent Ge and two N atoms. All Mn–Ge bond lengths are 2.62 Å. There is one shorter (1.90 Å) and one longer (1.93 Å) Mn–N bond length. Ge is bonded in a 12-coordinate geometry to ten Mn atoms. There are three inequivalent N sites. In the first N site, N is bonded to six Mn atoms to form corner-sharing NMn6 octahedra. The corner-sharing octahedra tilt angles range from 0–27°. In the second N site, N is bonded to six Mn atoms to form corner-sharing NMn6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the third N site, N is bonded to six Mn atoms to form corner-sharing NMn6 octahedra. The corner-sharing octahedral tilt angles are 27°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfMnGe by Materials Project

HfMnGe crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Hf is bonded in a 5-coordinate geometry to six equivalent Mn and five Ge atoms. There are two shorter (2.98 Å) and four longer (3.06 Å) Hf–Mn bond lengths. All Hf–Ge bond lengths are 2.77 Å. Mn is bonded in a 4-coordinate geometry to six equivalent Hf and four Ge atoms. There are two shorter (2.50 Å) and two longer (2.59 Å) Mn–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to three equivalent Hf and six equivalent Mn atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six equivalent Hf and three equivalent Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ga2Ni7Ge2 by Materials Project

Ni7Ga2Ge2 crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. there are four inequivalent Ni sites. In the first Ni site, Ni is bonded in a 8-coordinate geometry to eight Ni, three equivalent Ga, and three equivalent Ge atoms. There are a spread of Ni–Ni bond distances ranging from 2.50–2.64 Å. All Ni–Ga bond lengths are 2.62 Å. All Ni–Ge bond lengths are 2.66 Å. In the second Ni site, Ni is bonded in a 11-coordinate geometry to five Ni, three equivalent Ga, and three equivalent Ge atoms. There are one shorter (2.48 Å) and three longer (2.60 Å) Ni–Ni bond lengths. All Ni–Ga bond lengths are 2.61 Å. All Ni–Ge bond lengths are 2.58 Å. In the third Ni site, Ni is bonded in a 5-coordinate geometry to six Ni, two Ga, and three equivalent Ge atoms. There are one shorter (2.45 Å) and one longer (2.55 Å) Ni–Ga bond lengths. All Ni–Ge bond lengths are 2.30 Å. In the fourth Ni site, Ni is bonded in a 5-coordinate geometry to six equivalent Ni, three equivalent Ga, and two equivalent Ge atoms. All Ni–Ga bond lengths are 2.30 Å. Both Ni–Ge bond lengths are 2.59 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 11-coordinate geometry to eleven Ni atoms. In the second Ga site, Ga is bonded in a 8-coordinate geometry to eight Ni atoms. Ge is bonded in a 10-coordinate geometry to ten Ni atoms.

36 MATERIALS SCIENCE↗