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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on YWO3 by Materials Project

YWO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Y3+ is bonded to twelve equivalent O2- atoms to form YO12 cuboctahedra that share corners with twelve equivalent YO12 cuboctahedra, faces with six equivalent YO12 cuboctahedra, and faces with eight equivalent WO6 octahedra. All Y–O bond lengths are 2.90 Å. W3+ is bonded to six equivalent O2- atoms to form WO6 octahedra that share corners with six equivalent WO6 octahedra and faces with eight equivalent YO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All W–O bond lengths are 2.05 Å. O2- is bonded in a distorted linear geometry to four equivalent Y3+ and two equivalent W3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YWO3 by Materials Project

YWO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Y3+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are a spread of Y–O bond distances ranging from 2.25–2.86 Å. W3+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 42–47°. There are a spread of W–O bond distances ranging from 2.16–2.18 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent Y3+ and two equivalent W3+ atoms. In the second O2- site, O2- is bonded to two equivalent Y3+ and two equivalent W3+ atoms to form distorted corner-sharing OY2W2 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YWO3 by Materials Project

YWO3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Y3+ is bonded to six equivalent O2- atoms to form distorted YO6 octahedra that share corners with six equivalent WO5 trigonal bipyramids and edges with six equivalent YO6 octahedra. All Y–O bond lengths are 2.32 Å. W3+ is bonded to five O2- atoms to form WO5 trigonal bipyramids that share corners with six equivalent YO6 octahedra and corners with six equivalent WO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 64°. There are three shorter (2.08 Å) and two longer (2.15 Å) W–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three equivalent W3+ atoms. In the second O2- site, O2- is bonded to three equivalent Y3+ and one W3+ atom to form a mixture of edge and corner-sharing OY3W tetrahedra.

36 MATERIALS SCIENCE↗