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 1,063 records · Page 59
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Tm2CoGe2 by Materials Project

Tm2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 8-coordinate geometry to two equivalent Co and six Ge atoms. Both Tm–Co bond lengths are 3.06 Å. There are a spread of Tm–Ge bond distances ranging from 2.86–3.02 Å. In the second Tm site, Tm is bonded in a 11-coordinate geometry to four equivalent Co and seven Ge atoms. There are one shorter (2.92 Å) and three longer (3.04 Å) Tm–Co bond lengths. There are a spread of Tm–Ge bond distances ranging from 2.89–3.13 Å. Co is bonded in a 10-coordinate geometry to six Tm and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.36–2.57 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Tm, one Co, and one Ge atom. The Ge–Ge bond length is 2.64 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Tm, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.80 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr5SiGe2 by Materials Project

Pr5Ge2Si crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are five inequivalent Pr sites. In the first Pr site, Pr is bonded in a 6-coordinate geometry to four Ge and two equivalent Si atoms. There are a spread of Pr–Ge bond distances ranging from 3.22–3.24 Å. There are one shorter (3.20 Å) and one longer (3.21 Å) Pr–Si bond lengths. In the second Pr site, Pr is bonded in a 5-coordinate geometry to three Ge and two equivalent Si atoms. There are one shorter (3.07 Å) and two longer (3.62 Å) Pr–Ge bond lengths. There are one shorter (3.04 Å) and one longer (3.22 Å) Pr–Si bond lengths. In the third Pr site, Pr is bonded in a 5-coordinate geometry to three Ge and two equivalent Si atoms. There are one shorter (3.24 Å) and two longer (3.63 Å) Pr–Ge bond lengths. Both Pr–Si bond lengths are 3.06 Å. In the fourth Pr site, Pr is bonded in a 3-coordinate geometry to three Ge and two equivalent Si atoms. There are a spread of Pr–Ge bond distances ranging from 3.05–3.22 Å. Both Pr–Si bond lengths are 3.62 Å. In the fifth Pr site, Pr is bonded in a 5-coordinate geometry to five Ge atoms. There are a spread of Pr–Ge bond distances ranging from 3.06–3.62 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to nine Pr atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to nine Pr atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to nine Pr atoms. Si is bonded in a 9-coordinate geometry to nine Pr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr2V3Ge4 by Materials Project

Zr2V3Ge4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Zr is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Zr–Ge bond distances ranging from 2.73–2.87 Å. There are two inequivalent V sites. In the first V site, V is bonded to six Ge atoms to form distorted corner-sharing VGe6 octahedra. The corner-sharing octahedra tilt angles range from 45–53°. There are a spread of V–Ge bond distances ranging from 2.57–2.68 Å. In the second V site, V is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of V–Ge bond distances ranging from 2.49–2.62 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to two equivalent Zr, six V, and one Ge atom. The Ge–Ge bond length is 2.59 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Zr, four V, and one Ge atom. In the third Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Zr and four V atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmY(MnGe)4 by Materials Project

SmY(MnGe)4 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Sm is bonded in a 8-coordinate geometry to eight equivalent Ge atoms. All Sm–Ge bond lengths are 3.10 Å. Y is bonded in a 8-coordinate geometry to eight equivalent Ge atoms. All Y–Ge bond lengths are 3.09 Å. Mn is bonded to four Ge atoms to form a mixture of edge and corner-sharing MnGe4 tetrahedra. All Mn–Ge bond lengths are 2.43 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Sm, four equivalent Mn, and one Ge atom. The Ge–Ge bond length is 2.65 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Y, four equivalent Mn, and one Ge atom. The Ge–Ge bond length is 2.61 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ni43(GeB4)3 by Materials Project

Ni43(B4Ge)3 crystallizes in the trigonal R3m space group. The structure is three-dimensional. there are seventeen inequivalent Ni sites. In the first Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two B atoms. The Ni–Ni bond length is 2.50 Å. There are one shorter (2.07 Å) and one longer (2.08 Å) Ni–B bond lengths. In the second Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two B atoms. The Ni–Ni bond length is 2.49 Å. There are one shorter (2.07 Å) and one longer (2.08 Å) Ni–B bond lengths. In the third Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two equivalent B atoms. The Ni–Ni bond length is 2.49 Å. Both Ni–B bond lengths are 2.08 Å. In the fourth Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two equivalent B atoms. The Ni–Ni bond length is 2.50 Å. Both Ni–B bond lengths are 2.08 Å. In the fifth Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two equivalent B atoms. The Ni–Ni bond length is 2.49 Å. Both Ni–B bond lengths are 2.08 Å. In the sixth Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two equivalent B atoms. The Ni–Ni bond length is 2.50 Å. Both Ni–B bond lengths are 2.08 Å. In the seventh Ni site, Ni is bonded in a cuboctahedral geometry to twelve Ni atoms. In the eighth Ni site, Ni is bonded in a cuboctahedral geometry to twelve Ni atoms. In the ninth Ni site, Ni is bonded in a distorted trigonal non-coplanar geometry to one Ni and three B atoms. The Ni–Ni bond length is 2.39 Å. All Ni–B bond lengths are 2.08 Å. In the tenth Ni site, Ni is bonded to three B and one Ge atom to form a mixture of distorted edge and corner-sharing NiGeB3 tetrahedra. There are two shorter (2.09 Å) and one longer (2.10 Å) Ni–B bond lengths. The Ni–Ge bond length is 2.38 Å. In the eleventh Ni site, Ni is bonded to three equivalent B and one Ge atom to form a mixture of distorted edge and corner-sharing NiGeB3 tetrahedra. All Ni–B bond lengths are 2.09 Å. The Ni–Ge bond length is 2.37 Å. In the twelfth Ni site, Ni is bonded in a distorted trigonal non-coplanar geometry to one Ni and three equivalent B atoms. The Ni–Ni bond length is 2.39 Å. All Ni–B bond lengths are 2.08 Å. In the thirteenth Ni site, Ni is bonded to three B and one Ge atom to form a mixture of distorted edge and corner-sharing NiGeB3 tetrahedra. All Ni–B bond lengths are 2.09 Å. The Ni–Ge bond length is 2.37 Å. In the fourteenth Ni site, Ni is bonded to three B and one Ge atom to form a mixture of distorted edge and corner-sharing NiGeB3 tetrahedra. All Ni–B bond lengths are 2.09 Å. The Ni–Ge bond length is 2.37 Å. In the fifteenth Ni site, Ni is bonded to three equivalent B and one Ge atom to form distorted corner-sharing NiGeB3 tetrahedra. All Ni–B bond lengths are 2.09 Å. The Ni–Ge bond length is 2.37 Å. In the sixteenth Ni site, Ni is bonded to three equivalent B and one Ge atom to form a mixture of distorted edge and corner-sharing NiGeB3 tetrahedra. All Ni–B bond lengths are 2.09 Å. The Ni–Ge bond length is 2.37 Å. In the seventeenth Ni site, Ni is bonded in a distorted tetrahedral geometry to four Ni atoms. There are four inequivalent B sites. In the first B site, B is bonded in a 8-coordinate geometry to eight Ni atoms. In the second B site, B is bonded in a 8-coordinate geometry to eight Ni atoms. In the third B site, B is bonded in a 8-coordinate geometry to eight Ni atoms. In the fourth B site, B is bonded in a 8-coordinate geometry to eight Ni atoms. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a distorted tetrahedral geometry to four Ni atoms. In the second Ge site, Ge is bonded in a distorted tetrahedral geometry to four Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er5Ge4 by Materials Project

Er5Ge4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Er sites. In the first Er site, Er is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Er–Ge bond distances ranging from 2.83–3.02 Å. In the second Er site, Er is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Er–Ge bond distances ranging from 2.94–3.44 Å. In the third Er site, Er is bonded to six Ge atoms to form corner-sharing ErGe6 octahedra. The corner-sharing octahedra tilt angles range from 52–53°. There are a spread of Er–Ge bond distances ranging from 2.90–3.12 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to eight Er and one Ge atom. The Ge–Ge bond length is 2.75 Å. In the second Ge site, Ge is bonded in a 8-coordinate geometry to eight Er atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to eight Er and one Ge atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho2Ge2Ru by Materials Project

Ho2RuGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 2-coordinate geometry to four equivalent Ru and seven Ge atoms. There are a spread of Ho–Ru bond distances ranging from 3.06–3.17 Å. There are a spread of Ho–Ge bond distances ranging from 2.94–3.43 Å. In the second Ho site, Ho is bonded in a 6-coordinate geometry to two equivalent Ru and six Ge atoms. Both Ho–Ru bond lengths are 3.28 Å. There are a spread of Ho–Ge bond distances ranging from 2.90–3.20 Å. Ru is bonded in a 10-coordinate geometry to six Ho and four Ge atoms. There are a spread of Ru–Ge bond distances ranging from 2.46–2.62 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Ho, three equivalent Ru, and one Ge atom. The Ge–Ge bond length is 2.75 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to seven Ho, one Ru, and one Ge atom. The Ge–Ge bond length is 2.66 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti2AlGe3 by Materials Project

Ti2AlGe3 is Zirconium Disilicide-derived structured and crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Ti sites. In the first Ti site, Ti is bonded in a 10-coordinate geometry to two equivalent Al and eight Ge atoms. Both Ti–Al bond lengths are 2.81 Å. There are a spread of Ti–Ge bond distances ranging from 2.65–2.97 Å. In the second Ti site, Ti is bonded in a 10-coordinate geometry to two equivalent Al and eight Ge atoms. Both Ti–Al bond lengths are 2.83 Å. There are a spread of Ti–Ge bond distances ranging from 2.66–2.98 Å. Al is bonded in a distorted rectangular see-saw-like geometry to four Ti and four equivalent Ge atoms. All Al–Ge bond lengths are 2.62 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to four Ti and four equivalent Al atoms. In the second Ge site, Ge is bonded in a 4-coordinate geometry to six Ti and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.63 Å. In the third Ge site, Ge is bonded in a 4-coordinate geometry to six Ti and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er2CoGe2 by Materials Project

Er2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Er sites. In the first Er site, Er is bonded in a 6-coordinate geometry to two equivalent Co and six Ge atoms. Both Er–Co bond lengths are 3.14 Å. There are a spread of Er–Ge bond distances ranging from 2.88–3.05 Å. In the second Er site, Er is bonded in a 2-coordinate geometry to four equivalent Co and seven Ge atoms. There are a spread of Er–Co bond distances ranging from 3.00–3.06 Å. There are a spread of Er–Ge bond distances ranging from 2.89–3.20 Å. Co is bonded in a 10-coordinate geometry to six Er and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.38–2.53 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Er, one Co, and one Ge atom. The Ge–Ge bond length is 2.67 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Er, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.79 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2CoGe2 by Materials Project

Sc2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to four equivalent Co and seven Ge atoms. There are a spread of Sc–Co bond distances ranging from 2.87–3.01 Å. There are a spread of Sc–Ge bond distances ranging from 2.75–3.17 Å. In the second Sc site, Sc is bonded in a 6-coordinate geometry to two equivalent Co and six Ge atoms. Both Sc–Co bond lengths are 3.12 Å. There are a spread of Sc–Ge bond distances ranging from 2.73–2.93 Å. Co is bonded in a 4-coordinate geometry to six Sc and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.32–2.45 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Sc, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.61 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to seven Sc, one Co, and one Ge atom. The Ge–Ge bond length is 2.62 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu2ZnGe3 by Materials Project

Eu2ZnGe3 crystallizes in the monoclinic C2/m 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 two equivalent Zn and ten Ge atoms. There are one shorter (3.22 Å) and one longer (3.52 Å) Eu–Zn bond lengths. There are a spread of Eu–Ge bond distances ranging from 3.12–3.57 Å. In the second Eu site, Eu is bonded in a 12-coordinate geometry to four equivalent Zn and eight Ge atoms. There are two shorter (3.18 Å) and two longer (3.49 Å) Eu–Zn bond lengths. There are a spread of Eu–Ge bond distances ranging from 3.13–3.53 Å. Zn is bonded in a 3-coordinate geometry to six Eu and three Ge atoms. There are two shorter (2.47 Å) and one longer (2.48 Å) Zn–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to six Eu, one Zn, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.54 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to six Eu, one Zn, and two Ge atoms. The Ge–Ge bond length is 2.54 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge19(SbI)4 by Materials Project

Ge19Sb4(I)4 crystallizes in the cubic P-43n space group. The structure is three-dimensional and consists of eight hydriodic acid molecules and one Ge19Sb4 framework. In the Ge19Sb4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge is bonded to three equivalent Ge and one Sb atom to form distorted GeGe3Sb tetrahedra that share corners with three equivalent SbGe4 tetrahedra and corners with nine GeGe4 tetrahedra. All Ge–Ge bond lengths are 2.50 Å. The Ge–Sb bond length is 2.67 Å. In the second Ge site, Ge is bonded to three Ge and one Sb atom to form GeGe3Sb tetrahedra that share corners with two equivalent SbGe4 tetrahedra and corners with ten GeGe3Sb tetrahedra. There are one shorter (2.55 Å) and one longer (2.56 Å) Ge–Ge bond lengths. The Ge–Sb bond length is 2.71 Å. In the third Ge site, Ge is bonded to four equivalent Ge atoms to form GeGe4 tetrahedra that share corners with four equivalent SbGe4 tetrahedra and corners with eight GeGe3Sb tetrahedra. Sb is bonded to four Ge atoms to form SbGe4 tetrahedra that share corners with twelve GeGe3Sb tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu2Ge3Au by Materials Project

Eu2AuGe3 crystallizes in the orthorhombic Fmmm space group. The structure is three-dimensional. there are two inequivalent Eu sites. In the first Eu site, Eu is bonded to two equivalent Au and ten Ge atoms to form a mixture of edge and face-sharing EuGe10Au2 cuboctahedra. Both Eu–Au bond lengths are 3.38 Å. There are a spread of Eu–Ge bond distances ranging from 3.31–3.38 Å. In the second Eu site, Eu is bonded to four equivalent Au and eight Ge atoms to form a mixture of edge and face-sharing EuGe8Au4 cuboctahedra. All Eu–Au bond lengths are 3.35 Å. All Eu–Ge bond lengths are 3.36 Å. Au is bonded in a distorted trigonal planar geometry to six Eu and three Ge atoms. All Au–Ge bond lengths are 2.54 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a distorted single-bond geometry to six Eu, one Au, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.50 Å. In the second Ge site, Ge is bonded in a distorted single-bond geometry to six Eu, one Au, and two Ge atoms. The Ge–Ge bond length is 2.49 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on U3Ga2Ge3 by Materials Project

U3Ga2Ge3 crystallizes in the orthorhombic Fmm2 space group. The structure is three-dimensional. there are three inequivalent U sites. In the first U site, U is bonded in a 5-coordinate geometry to three U and six Ge atoms. There are two shorter (2.61 Å) and one longer (2.62 Å) U–U bond lengths. There are a spread of U–Ge bond distances ranging from 2.94–3.32 Å. In the second U site, U is bonded in a 12-coordinate geometry to two equivalent U, one Ga, and six Ge atoms. The U–Ga bond length is 2.95 Å. There are a spread of U–Ge bond distances ranging from 2.99–3.16 Å. In the third U site, U is bonded in a 8-coordinate geometry to one U, four Ga, and six Ge atoms. There are two shorter (3.09 Å) and two longer (3.35 Å) U–Ga bond lengths. There are a spread of U–Ge bond distances ranging from 2.88–3.31 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 6-coordinate geometry to two equivalent U and six Ge atoms. There are a spread of Ga–Ge bond distances ranging from 2.59–3.00 Å. In the second Ga site, Ga is bonded in a 6-coordinate geometry to three U and three Ge atoms. There are one shorter (2.59 Å) and two longer (2.61 Å) Ga–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six U and three Ga atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six U and four Ga atoms. In the third Ge site, Ge is bonded in a 8-coordinate geometry to six U and two equivalent Ga atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce2Ge5Rh3 by Materials Project

Ce2Rh3Ge5 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Ce is bonded in a 1-coordinate geometry to seven Rh and ten Ge atoms. There are a spread of Ce–Rh bond distances ranging from 3.17–3.52 Å. There are a spread of Ce–Ge bond distances ranging from 3.02–3.30 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 6-coordinate geometry to four equivalent Ce and six Ge atoms. There are four shorter (2.53 Å) and two longer (2.69 Å) Rh–Ge bond lengths. In the second Rh site, Rh is bonded in a 5-coordinate geometry to five equivalent Ce and five Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.41–2.52 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to four equivalent Ce and four equivalent Rh atoms. In the second Ge site, Ge is bonded in a 2-coordinate geometry to four equivalent Ce, three Rh, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.67 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Ce, three Rh, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Dy2Ge2Ru by Materials Project

Dy2RuGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Dy sites. In the first Dy site, Dy is bonded in a 2-coordinate geometry to four equivalent Ru and seven Ge atoms. There are a spread of Dy–Ru bond distances ranging from 3.06–3.19 Å. There are a spread of Dy–Ge bond distances ranging from 2.95–3.43 Å. In the second Dy site, Dy is bonded in a 6-coordinate geometry to two equivalent Ru and six Ge atoms. Both Dy–Ru bond lengths are 3.30 Å. There are a spread of Dy–Ge bond distances ranging from 2.91–3.22 Å. Ru is bonded in a 10-coordinate geometry to six Dy and four Ge atoms. There are a spread of Ru–Ge bond distances ranging from 2.46–2.62 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Dy, three equivalent Ru, and one Ge atom. The Ge–Ge bond length is 2.78 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to seven Dy, one Ru, and one Ge atom. The Ge–Ge bond length is 2.65 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge19(PCl)4 by Materials Project

Ge19P4(Cl2)2 crystallizes in the cubic P-43n space group. The structure is three-dimensional and consists of eight hydrochloric acid molecules and one Ge19P4 framework. In the Ge19P4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge is bonded to three equivalent Ge and one P atom to form GeGe3P tetrahedra that share corners with three equivalent PGe4 tetrahedra and corners with nine GeGe3P tetrahedra. All Ge–Ge bond lengths are 2.45 Å. The Ge–P bond length is 2.38 Å. In the second Ge site, Ge is bonded to three Ge and one P atom to form GeGe3P tetrahedra that share corners with two equivalent PGe4 tetrahedra and corners with ten GeGe3P tetrahedra. There are one shorter (2.46 Å) and one longer (2.49 Å) Ge–Ge bond lengths. The Ge–P bond length is 2.41 Å. In the third Ge site, Ge is bonded to four equivalent Ge atoms to form GeGe4 tetrahedra that share corners with four equivalent PGe4 tetrahedra and corners with eight GeGe3P tetrahedra. P is bonded to four Ge atoms to form PGe4 tetrahedra that share corners with twelve GeGe3P tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge19(SbBr)4 by Materials Project

Ge19Sb4(Br)4 crystallizes in the cubic P-43n space group. The structure is three-dimensional and consists of eight hydrobromic acid molecules and one Ge19Sb4 framework. In the Ge19Sb4 framework, there are three inequivalent Ge sites. In the first Ge site, Ge is bonded to three equivalent Ge and one Sb atom to form GeGe3Sb tetrahedra that share corners with three equivalent SbGe4 tetrahedra and corners with nine GeGe4 tetrahedra. All Ge–Ge bond lengths are 2.48 Å. The Ge–Sb bond length is 2.64 Å. In the second Ge site, Ge is bonded to three Ge and one Sb atom to form GeGe3Sb tetrahedra that share corners with two equivalent SbGe4 tetrahedra and corners with ten GeGe3Sb tetrahedra. Both Ge–Ge bond lengths are 2.52 Å. The Ge–Sb bond length is 2.68 Å. In the third Ge site, Ge is bonded to four equivalent Ge atoms to form GeGe4 tetrahedra that share corners with four equivalent SbGe4 tetrahedra and corners with eight GeGe3Sb tetrahedra. Sb is bonded to four Ge atoms to form SbGe4 tetrahedra that share corners with twelve GeGe3Sb tetrahedra.

36 MATERIALS SCIENCE↗