Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “planar structures”

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 649 records · Page 36
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on NbAu4 by Materials Project

NbAu4 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Nb4+ is bonded in a hexagonal planar geometry to six equivalent Au1- atoms. All Nb–Au bond lengths are 2.91 Å. There are two inequivalent Au1- sites. In the first Au1- site, Au1- is bonded to three equivalent Nb4+ and three equivalent Au1- atoms to form a mixture of distorted edge and corner-sharing AuNb3Au3 cuboctahedra. All Au–Au bond lengths are 2.98 Å. In the second Au1- site, Au1- is bonded to twelve Au1- atoms to form AuAu12 cuboctahedra that share corners with fifteen AuNb3Au3 cuboctahedra, edges with twenty-one AuNb3Au3 cuboctahedra, and faces with twelve equivalent AuAu12 cuboctahedra. There are six shorter (2.94 Å) and three longer (2.96 Å) Au–Au bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm(Co2B)6 by Materials Project

Tm(Co2B)6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Tm3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Tm–B bond lengths are 3.03 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. All Co–B bond lengths are 2.10 Å. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing CoB4 trigonal pyramids. There are two shorter (2.02 Å) and two longer (2.04 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Tm3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er(Co2B)6 by Materials Project

ErCo12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Er3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Er–B bond lengths are 3.02 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. All Co–B bond lengths are 2.11 Å. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing CoB4 trigonal pyramids. There are two shorter (2.02 Å) and two longer (2.04 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Er3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Dy(Co2B)6 by Materials Project

Dy(Co2B)6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Dy3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Dy–B bond lengths are 3.03 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. All Co–B bond lengths are 2.10 Å. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted corner and edge-sharing CoB4 trigonal pyramids. There are two shorter (2.02 Å) and two longer (2.03 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Dy3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm(Co2B)6 by Materials Project

SmCo12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Sm3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Sm–B bond lengths are 3.05 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. All Co–B bond lengths are 2.10 Å. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing CoB4 trigonal pyramids. There are two shorter (2.03 Å) and two longer (2.04 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Sm3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y(Co2B)6 by Materials Project

YCo12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Y3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Y–B bond lengths are 3.04 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. All Co–B bond lengths are 2.10 Å. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted corner and edge-sharing CoB4 trigonal pyramids. There are two shorter (2.03 Å) and two longer (2.04 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Y3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce2Si2Sn by Materials Project

Ce2SnSi2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ce3+ is bonded in a distorted hexagonal planar geometry to six equivalent Si4- atoms. There are two shorter (3.05 Å) and four longer (3.09 Å) Ce–Si bond lengths. Sn2+ is bonded in a square co-planar geometry to four equivalent Si4- atoms. All Sn–Si bond lengths are 2.91 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Ce3+, two equivalent Sn2+, and one Si4- atom. The Si–Si bond length is 2.37 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce2ScSi2 by Materials Project

Ce2ScSi2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ce3+ is bonded in a distorted hexagonal planar geometry to six equivalent Si4- atoms. There are two shorter (3.00 Å) and four longer (3.11 Å) Ce–Si bond lengths. Sc2+ is bonded in a square co-planar geometry to four equivalent Si4- atoms. All Sc–Si bond lengths are 2.90 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Ce3+, two equivalent Sc2+, and one Si4- atom. The Si–Si bond length is 2.47 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on C by Materials Project

C is Copper structured and crystallizes in the cubic Fm-3 space group. The structure is zero-dimensional and consists of four fullerene molecules. there are three inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to three C atoms. There are a spread of C–C bond distances ranging from 1.40–1.46 Å. In the second C site, C is bonded in a trigonal planar geometry to three C atoms. There is one shorter (1.40 Å) and two longer (1.45 Å) C–C bond length. In the third C site, C is bonded in a trigonal planar geometry to three C atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr(Ni2B)6 by Materials Project

SrNi12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Sr2+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Sr–B bond lengths are 3.19 Å. There are two inequivalent Ni+1.33+ sites. In the first Ni+1.33+ site, Ni+1.33+ is bonded to four equivalent B3- atoms to form a mixture of distorted corner and edge-sharing NiB4 tetrahedra. There are two shorter (2.04 Å) and two longer (2.11 Å) Ni–B bond lengths. In the second Ni+1.33+ site, Ni+1.33+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are two shorter (2.06 Å) and one longer (2.08 Å) Ni–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Sr2+ and seven Ni+1.33+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu(Ni2B)6 by Materials Project

Eu(Ni2B)6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Eu2+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Eu–B bond lengths are 3.16 Å. There are two inequivalent Ni+1.33+ sites. In the first Ni+1.33+ site, Ni+1.33+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are two shorter (2.07 Å) and one longer (2.09 Å) Ni–B bond lengths. In the second Ni+1.33+ site, Ni+1.33+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing NiB4 trigonal pyramids. There are two shorter (2.04 Å) and two longer (2.10 Å) Ni–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Eu2+ and seven Ni+1.33+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Gd(Co2B)6 by Materials Project

GdCo12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Gd3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Gd–B bond lengths are 3.04 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing CoB4 trigonal pyramids. There are two shorter (2.02 Å) and two longer (2.04 Å) Co–B bond lengths. In the second Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are one shorter (2.09 Å) and two longer (2.10 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Gd3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La(Co2B)6 by Materials Project

LaCo12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. La3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All La–B bond lengths are 3.09 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are two shorter (2.09 Å) and one longer (2.11 Å) Co–B bond lengths. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted corner and edge-sharing CoB4 trigonal pyramids. There are two shorter (2.04 Å) and two longer (2.05 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one La3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho(Co2B)6 by Materials Project

Ho(Co2B)6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ho3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Ho–B bond lengths are 3.03 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are one shorter (2.10 Å) and two longer (2.11 Å) Co–B bond lengths. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing CoB4 trigonal pyramids. There are two shorter (2.02 Å) and two longer (2.04 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Ho3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba(Ni2B)6 by Materials Project

Ba(Ni2B)6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ba2+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Ba–B bond lengths are 3.26 Å. There are two inequivalent Ni+1.33+ sites. In the first Ni+1.33+ site, Ni+1.33+ is bonded to four equivalent B3- atoms to form a mixture of distorted corner and edge-sharing NiB4 tetrahedra. There are two shorter (2.04 Å) and two longer (2.16 Å) Ni–B bond lengths. In the second Ni+1.33+ site, Ni+1.33+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are two shorter (2.06 Å) and one longer (2.07 Å) Ni–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Ba2+ and seven Ni+1.33+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca(Ni2B)6 by Materials Project

Ca(Ni2B)6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ca2+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Ca–B bond lengths are 3.15 Å. There are two inequivalent Ni+1.33+ sites. In the first Ni+1.33+ site, Ni+1.33+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing NiB4 tetrahedra. There are two shorter (2.04 Å) and two longer (2.09 Å) Ni–B bond lengths. In the second Ni+1.33+ site, Ni+1.33+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are two shorter (2.07 Å) and one longer (2.08 Å) Ni–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Ca2+ and seven Ni+1.33+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce(Co2B)6 by Materials Project

CeCo12B6 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ce3+ is bonded in a hexagonal planar geometry to six equivalent B3- atoms. All Ce–B bond lengths are 3.07 Å. There are two inequivalent Co+1.25+ sites. In the first Co+1.25+ site, Co+1.25+ is bonded in a T-shaped geometry to three equivalent B3- atoms. There are two shorter (2.09 Å) and one longer (2.12 Å) Co–B bond lengths. In the second Co+1.25+ site, Co+1.25+ is bonded to four equivalent B3- atoms to form a mixture of distorted corner and edge-sharing CoB4 trigonal pyramids. There are two shorter (2.03 Å) and two longer (2.04 Å) Co–B bond lengths. B3- is bonded in a 7-coordinate geometry to one Ce3+ and seven Co+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on VPt by Materials Project

PtV crystallizes in the trigonal R-3m space group. The structure is three-dimensional. V2+ is bonded in a distorted hexagonal planar geometry to six equivalent Pt2- atoms. All V–Pt bond lengths are 2.74 Å. Pt2- is bonded to six equivalent V2+ and six equivalent Pt2- atoms to form a mixture of distorted edge, face, and corner-sharing PtV6Pt6 cuboctahedra. All Pt–Pt bond lengths are 2.74 Å.

36 MATERIALS SCIENCE↗