Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Au-Ca-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.

8 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CaGeAu by Materials Project

CaAuGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Ca sites. In the first Ca site, Ca is bonded in a 12-coordinate geometry to six Au and six Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.11–3.25 Å. There are a spread of Ca–Ge bond distances ranging from 3.13–3.36 Å. In the second Ca site, Ca is bonded in a 12-coordinate geometry to six Au and six Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.23–3.36 Å. There are a spread of Ca–Ge bond distances ranging from 3.10–3.24 Å. In the third Ca site, Ca is bonded in a 12-coordinate geometry to six Au and six Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.10–3.22 Å. There are a spread of Ca–Ge bond distances ranging from 3.24–3.36 Å. There are three inequivalent Au sites. In the first Au site, Au is bonded in a 10-coordinate geometry to six Ca and four Ge atoms. There are a spread of Au–Ge bond distances ranging from 2.66–2.97 Å. In the second Au site, Au is bonded in a 10-coordinate geometry to six Ca, one Au, and three equivalent Ge atoms. The Au–Au bond length is 3.14 Å. There are two shorter (2.65 Å) and one longer (2.68 Å) Au–Ge bond lengths. In the third Au site, Au is bonded in a 10-coordinate geometry to six Ca, one Au, and three Ge atoms. There are one shorter (2.62 Å) and two longer (2.65 Å) Au–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Ca, three Au, and one Ge atom. The Ge–Ge bond length is 2.73 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Ca, three equivalent Au, and one Ge atom. In the third Ge site, Ge is bonded in a 10-coordinate geometry to six Ca and four Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca(GeAu)2 by Materials Project

Ca(AuGe)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ca is bonded in a 8-coordinate geometry to eight equivalent Au and eight equivalent Ge atoms. All Ca–Au bond lengths are 3.45 Å. All Ca–Ge bond lengths are 3.43 Å. Au is bonded in a 4-coordinate geometry to four equivalent Ca and four equivalent Ge atoms. All Au–Ge bond lengths are 2.64 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Ca, four equivalent Au, and one Ge atom. The Ge–Ge bond length is 2.48 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca13(Ge11Au25)2 by Materials Project

Ca13(Au25Ge11)2 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a 8-coordinate geometry to eight equivalent Au and twelve equivalent Ge atoms. All Ca–Au bond lengths are 3.67 Å. All Ca–Ge bond lengths are 3.68 Å. In the second Ca site, Ca is bonded in a 12-coordinate geometry to twelve Au and four Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.15–3.32 Å. There are a spread of Ca–Ge bond distances ranging from 3.31–3.35 Å. There are four inequivalent Au sites. In the first Au site, Au is bonded in a 6-coordinate geometry to three equivalent Ca, three Au, and three Ge atoms. There are a spread of Au–Au bond distances ranging from 2.92–3.08 Å. There are a spread of Au–Ge bond distances ranging from 2.67–2.89 Å. In the second Au site, Au is bonded in a 4-coordinate geometry to four Ca, three equivalent Au, and four Ge atoms. There are three shorter (2.63 Å) and one longer (2.80 Å) Au–Ge bond lengths. In the third Au site, Au is bonded in a 9-coordinate geometry to two equivalent Ca, four equivalent Au, and two equivalent Ge atoms. All Au–Au bond lengths are 3.01 Å. Both Au–Ge bond lengths are 2.84 Å. In the fourth Au site, Au is bonded in a 12-coordinate geometry to three equivalent Ca, seven Au, and two equivalent Ge atoms. The Au–Au bond length is 2.91 Å. There are one shorter (2.65 Å) and one longer (2.74 Å) Au–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to two equivalent Ca and eight Au atoms. In the second Ge site, Ge is bonded in a body-centered cubic geometry to eight Au atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to four Ca and five Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca3Ge4Au7 by Materials Project

Ca3Au7Ge4 crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a 4-coordinate geometry to nine Au and five Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.13–3.41 Å. There are a spread of Ca–Ge bond distances ranging from 3.18–3.41 Å. In the second Ca site, Ca is bonded in a 8-coordinate geometry to six Au and two equivalent Ge atoms. There are two shorter (3.13 Å) and four longer (3.28 Å) Ca–Au bond lengths. Both Ca–Ge bond lengths are 3.15 Å. There are four inequivalent Au sites. In the first Au site, Au is bonded in a 12-coordinate geometry to two equivalent Ca, four Au, and three Ge atoms. There are two shorter (2.93 Å) and two longer (2.97 Å) Au–Au bond lengths. There are one shorter (2.82 Å) and two longer (2.84 Å) Au–Ge bond lengths. In the second Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are one shorter (2.96 Å) and one longer (2.98 Å) Au–Au bond lengths. Both Au–Ge bond lengths are 2.58 Å. In the third Au site, Au is bonded to four equivalent Ca, six Au, and two equivalent Ge atoms to form distorted face-sharing AuCa4Ge2Au6 cuboctahedra. Both Au–Ge bond lengths are 2.74 Å. In the fourth Au site, Au is bonded in a 1-coordinate geometry to four Ca, one Au, and three Ge atoms. There are one shorter (2.56 Å) and two longer (2.79 Å) Au–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 3-coordinate geometry to three equivalent Ca, four Au, and one Ge atom. The Ge–Ge bond length is 2.66 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to three Ca, five Au, and one Ge atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca3Ge3Au8 by Materials Project

Ca3Au8Ge3 crystallizes in the monoclinic P2/m space group. The structure is three-dimensional. there are four inequivalent Ca sites. In the first Ca site, Ca is bonded in a 10-coordinate geometry to eleven Au and five Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.18–3.73 Å. There are a spread of Ca–Ge bond distances ranging from 3.16–3.37 Å. In the second Ca site, Ca is bonded in a 10-coordinate geometry to eleven Au and three Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.15–3.45 Å. There are two shorter (3.22 Å) and one longer (3.42 Å) Ca–Ge bond lengths. In the third Ca site, Ca is bonded in a 8-coordinate geometry to ten Au and two equivalent Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.09–3.63 Å. Both Ca–Ge bond lengths are 3.20 Å. In the fourth Ca site, Ca is bonded in a 12-coordinate geometry to twelve Au atoms. There are a spread of Ca–Au bond distances ranging from 3.17–3.64 Å. There are nine inequivalent Au sites. In the first Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are a spread of Au–Au bond distances ranging from 2.91–2.99 Å. Both Au–Ge bond lengths are 2.60 Å. In the second Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are a spread of Au–Au bond distances ranging from 2.92–3.01 Å. Both Au–Ge bond lengths are 2.58 Å. In the third Au site, Au is bonded in a 1-coordinate geometry to five Ca, two Au, and three Ge atoms. The Au–Au bond length is 2.80 Å. There are one shorter (2.55 Å) and two longer (2.81 Å) Au–Ge bond lengths. In the fourth Au site, Au is bonded in a 1-coordinate geometry to four Ca, two Au, and one Ge atom. The Au–Au bond length is 2.87 Å. The Au–Ge bond length is 2.53 Å. In the fifth Au site, Au is bonded to four Ca, five Au, and three Ge atoms to form a mixture of distorted face, edge, and corner-sharing AuCa4Ge3Au5 cuboctahedra. Both Au–Au bond lengths are 3.01 Å. There are one shorter (2.78 Å) and two longer (2.87 Å) Au–Ge bond lengths. In the sixth Au site, Au is bonded to four Ca, seven Au, and one Ge atom to form a mixture of distorted face, edge, and corner-sharing AuCa4GeAu7 cuboctahedra. There are two shorter (2.93 Å) and two longer (3.00 Å) Au–Au bond lengths. The Au–Ge bond length is 2.81 Å. In the seventh Au site, Au is bonded to four equivalent Ca and eight Au atoms to form face-sharing AuCa4Au8 cuboctahedra. Both Au–Au bond lengths are 2.79 Å. In the eighth Au site, Au is bonded in a distorted linear geometry to four equivalent Ca, six Au, and two equivalent Ge atoms. Both Au–Ge bond lengths are 2.70 Å. In the ninth Au site, Au is bonded in a 1-coordinate geometry to four Ca, three Au, and one Ge atom. The Au–Ge bond length is 2.62 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to three Ca and five Au atoms. In the second Ge site, Ge is bonded in a 3-coordinate geometry to three Ca, four Au, and one Ge atom. The Ge–Ge bond length is 2.66 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to three Ca, five Au, and one Ge atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca3Ge2Au9 by Materials Project

Ca3Au9Ge2 crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a 6-coordinate geometry to twelve Au and three equivalent Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.17–3.63 Å. There are two shorter (3.21 Å) and one longer (3.39 Å) Ca–Ge bond lengths. In the second Ca site, Ca is bonded in a 8-coordinate geometry to eight Au atoms. There are a spread of Ca–Au bond distances ranging from 3.10–3.30 Å. There are five inequivalent Au sites. In the first Au site, Au is bonded in a 12-coordinate geometry to two equivalent Ca, six Au, and one Ge atom. There are a spread of Au–Au bond distances ranging from 2.90–3.00 Å. The Au–Ge bond length is 2.78 Å. In the second Au site, Au is bonded in a 1-coordinate geometry to four Ca, five Au, and one Ge atom. There are one shorter (2.79 Å) and two longer (2.84 Å) Au–Au bond lengths. The Au–Ge bond length is 2.58 Å. In the third Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are one shorter (2.93 Å) and one longer (3.04 Å) Au–Au bond lengths. Both Au–Ge bond lengths are 2.59 Å. In the fourth Au site, Au is bonded in a 1-coordinate geometry to four Ca, three Au, and one Ge atom. The Au–Ge bond length is 2.52 Å. In the fifth Au site, Au is bonded to four equivalent Ca and eight Au atoms to form face-sharing AuCa4Au8 cuboctahedra. Ge is bonded in a 4-coordinate geometry to three equivalent Ca and five Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca4Ge3Au5 by Materials Project

Ca4Au5Ge3 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Ca sites. In the first Ca site, Ca is bonded in a 12-coordinate geometry to seven Au and five Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.16–3.45 Å. There are a spread of Ca–Ge bond distances ranging from 3.16–3.23 Å. In the second Ca site, Ca is bonded in a 12-coordinate geometry to eight Au and four Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.08–3.51 Å. There are a spread of Ca–Ge bond distances ranging from 3.16–3.28 Å. In the third Ca site, Ca is bonded in a 12-coordinate geometry to nine Au and three Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.17–3.39 Å. There are one shorter (3.32 Å) and two longer (3.46 Å) Ca–Ge bond lengths. In the fourth Ca site, Ca is bonded in a 12-coordinate geometry to six Au and six Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.07–3.22 Å. There are a spread of Ca–Ge bond distances ranging from 3.20–3.37 Å. There are five inequivalent Au sites. In the first Au site, Au is bonded in a 10-coordinate geometry to six Ca, three Au, and one Ge atom. There are two shorter (2.79 Å) and one longer (2.82 Å) Au–Au bond lengths. The Au–Ge bond length is 2.83 Å. In the second Au site, Au is bonded in a 10-coordinate geometry to six Ca, one Au, and three Ge atoms. The Au–Au bond length is 3.14 Å. There are two shorter (2.65 Å) and one longer (2.70 Å) Au–Ge bond lengths. In the third Au site, Au is bonded in a 10-coordinate geometry to six Ca, two Au, and two equivalent Ge atoms. The Au–Au bond length is 3.09 Å. Both Au–Ge bond lengths are 2.60 Å. In the fourth Au site, Au is bonded in a 1-coordinate geometry to six Ca, three Au, and one Ge atom. The Au–Ge bond length is 2.63 Å. In the fifth Au site, Au is bonded in a 10-coordinate geometry to six Ca, one Au, and three Ge atoms. There are one shorter (2.63 Å) and two longer (2.67 Å) Au–Ge bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to six Ca, three Au, and one Ge atom. The Ge–Ge bond length is 2.69 Å. In the second Ge site, Ge is bonded in a 3-coordinate geometry to six Ca, three Au, and one Ge atom. In the third Ge site, Ge is bonded in a 10-coordinate geometry to six Ca and four Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca6Ge7Au15 by Materials Project

Ca6Au15Ge7 is beta Plutonium-derived structured and crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are six inequivalent Ca sites. In the first Ca site, Ca is bonded in a 4-coordinate geometry to eleven Au and five Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.15–3.72 Å. There are a spread of Ca–Ge bond distances ranging from 3.19–3.36 Å. In the second Ca site, Ca is bonded in a 1-coordinate geometry to nine Au and five Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.13–3.41 Å. There are a spread of Ca–Ge bond distances ranging from 3.15–3.37 Å. In the third Ca site, Ca is bonded in a 11-coordinate geometry to eleven Au and three Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.12–3.49 Å. There are two shorter (3.21 Å) and one longer (3.40 Å) Ca–Ge bond lengths. In the fourth Ca site, Ca is bonded in a 4-coordinate geometry to nine Au and five Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.17–3.36 Å. There are a spread of Ca–Ge bond distances ranging from 3.19–3.41 Å. In the fifth Ca site, Ca is bonded in a 8-coordinate geometry to ten Au and two Ge atoms. There are a spread of Ca–Au bond distances ranging from 3.09–3.68 Å. There are one shorter (3.16 Å) and one longer (3.17 Å) Ca–Ge bond lengths. In the sixth Ca site, Ca is bonded in a 8-coordinate geometry to eleven Au and one Ge atom. There are a spread of Ca–Au bond distances ranging from 3.09–3.71 Å. The Ca–Ge bond length is 3.15 Å. There are fifteen inequivalent Au sites. In the first Au site, Au is bonded in a 2-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are three shorter (2.94 Å) and one longer (2.99 Å) Au–Au bond lengths. Both Au–Ge bond lengths are 2.58 Å. In the second Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are a spread of Au–Au bond distances ranging from 2.91–2.96 Å. Both Au–Ge bond lengths are 2.60 Å. In the third Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are a spread of Au–Au bond distances ranging from 2.91–2.98 Å. Both Au–Ge bond lengths are 2.58 Å. In the fourth Au site, Au is bonded in a 10-coordinate geometry to four Ca, four Au, and two equivalent Ge atoms. There are a spread of Au–Au bond distances ranging from 2.94–3.01 Å. Both Au–Ge bond lengths are 2.57 Å. In the fifth Au site, Au is bonded in a 1-coordinate geometry to four Ca, two Au, and three Ge atoms. The Au–Au bond length is 2.78 Å. There are one shorter (2.56 Å) and two longer (2.80 Å) Au–Ge bond lengths. In the sixth Au site, Au is bonded in a 1-coordinate geometry to five Ca, two Au, and three Ge atoms. The Au–Au bond length is 2.81 Å. There are one shorter (2.54 Å) and two longer (2.80 Å) Au–Ge bond lengths. In the seventh Au site, Au is bonded in a 3-coordinate geometry to four Ca, two Au, and three Ge atoms. The Au–Au bond length is 2.81 Å. There are one shorter (2.54 Å) and two longer (2.75 Å) Au–Ge bond lengths. In the eighth Au site, Au is bonded in a 1-coordinate geometry to four Ca, two Au, and one Ge atom. The Au–Au bond length is 2.86 Å. The Au–Ge bond length is 2.53 Å. In the ninth Au site, Au is bonded in a 1-coordinate geometry to four Ca, seven Au, and one Ge atom. There are a spread of Au–Au bond distances ranging from 2.82–3.02 Å. The Au–Ge bond length is 2.68 Å. In the tenth Au site, Au is bonded in a distorted linear geometry to four Ca, six Au, and two Ge atoms. There are two shorter (2.97 Å) and two longer (3.02 Å) Au–Au bond lengths. There are one shorter (2.68 Å) and one longer (2.69 Å) Au–Ge bond lengths. In the eleventh Au site, Au is bonded in a 12-coordinate geometry to four Ca, five Au, and three Ge atoms. There are one shorter (2.74 Å) and two longer (2.87 Å) Au–Ge bond lengths. In the twelfth Au site, Au is bonded in a 12-coordinate geometry to four Ca, five Au, and three Ge atoms. There are one shorter (2.81 Å) and two longer (2.86 Å) Au–Ge bond lengths. In the thirteenth Au site, Au is bonded in a 12-coordinate geometry to four Ca, five Au, and three Ge atoms. There are one shorter (2.76 Å) and two longer (2.89 Å) Au–Ge bond lengths. In the fourteenth Au site, Au is bonded to four Ca, seven Au, and one Ge atom to form distorted face-sharing AuCa4GeAu7 cuboctahedra. Both Au–Au bond lengths are 2.93 Å. The Au–Ge bond length is 2.81 Å. In the fifteenth Au site, Au is bonded in a 1-coordinate geometry to four Ca, three Au, and one Ge atom. The Au–Ge bond length is 2.61 Å. There are seven inequivalent Ge sites. In the first Ge site, Ge is bonded in a 4-coordinate geometry to three Ca and five Au atoms. In the second Ge site, Ge is bonded in a 3-coordinate geometry to three Ca, four Au, and one Ge atom. The Ge–Ge bond length is 2.67 Å. In the third Ge site, Ge is bonded in a 3-coordinate geometry to three Ca, four Au, and one Ge atom. The Ge–Ge bond length is 2.70 Å. In the fourth Ge site, Ge is bonded in a 3-coordinate geometry to three Ca, four Au, and one Ge atom. The Ge–Ge bond length is 2.65 Å. In the fifth Ge site, Ge is bonded in a 9-coordinate geometry to three Ca, five Au, and one Ge atom. In the sixth Ge site, Ge is bonded in a 9-coordinate geometry to three Ca, five Au, and one Ge atom. In the seventh Ge site, Ge is bonded in a 9-coordinate geometry to three Ca, five Au, and one Ge atom.

36 MATERIALS SCIENCE↗