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23 records · Page 2
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CaCuO3 by Materials Project

CaCuO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ca is bonded to twelve equivalent O atoms to form CaO12 cuboctahedra that share corners with twelve equivalent CaO12 cuboctahedra, faces with six equivalent CaO12 cuboctahedra, and faces with eight equivalent CuO6 octahedra. All Ca–O bond lengths are 2.69 Å. Cu is bonded to six equivalent O atoms to form CuO6 octahedra that share corners with six equivalent CuO6 octahedra and faces with eight equivalent CaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Cu–O bond lengths are 1.90 Å. O is bonded to four equivalent Ca and two equivalent Cu atoms to form a mixture of distorted edge, corner, and face-sharing OCa4Cu2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca4(CuO2)5 by Materials Project

Ca4Cu5O10 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ca–O bond distances ranging from 2.35–2.60 Å. In the second Ca2+ site, Ca2+ is bonded to six O2- atoms to form edge-sharing CaO6 octahedra. There are a spread of Ca–O bond distances ranging from 2.36–2.42 Å. There are three inequivalent Cu+2.40+ sites. In the first Cu+2.40+ site, Cu+2.40+ is bonded in a square co-planar geometry to four O2- atoms. All Cu–O bond lengths are 1.87 Å. In the second Cu+2.40+ site, Cu+2.40+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.90 Å) and two longer (1.91 Å) Cu–O bond length. In the third Cu+2.40+ site, Cu+2.40+ is bonded in a rectangular see-saw-like geometry to four O2- atoms. There is three shorter (1.95 Å) and one longer (1.96 Å) Cu–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Cu+2.40+ atoms to form a mixture of distorted edge and corner-sharing OCa2Cu2 trigonal pyramids. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Cu+2.40+ atoms. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Cu+2.40+ atoms. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to three Ca2+ and two Cu+2.40+ atoms. In the fifth O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Cu+2.40+ atoms to form a mixture of distorted edge and corner-sharing OCa2Cu2 trigonal pyramids. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Ca2+ and two Cu+2.40+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca(CuO2)2 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CaCu3O4 by Materials Project

CaCu3O4 crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Ca2+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Ca–O bond lengths are 2.42 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.98 Å. In the second Cu2+ site, Cu2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.98 Å. O2- is bonded to two equivalent Ca2+ and three Cu2+ atoms to form a mixture of corner and edge-sharing OCa2Cu3 trigonal bipyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca(Cu3O4)2 by Materials Project

Ca(Cu3O4)2 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ca2+ is bonded in a body-centered cubic geometry to eight equivalent O2- atoms. All Ca–O bond lengths are 2.33 Å. Cu+2.33+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.92 Å. O2- is bonded to one Ca2+ and three equivalent Cu+2.33+ atoms to form a mixture of distorted edge and corner-sharing OCaCu3 trigonal pyramids.

36 MATERIALS SCIENCE↗