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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on AlWO3 by Materials Project

WO3Al is (Cubic) Perovskite structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional and consists of one aluminium molecule and one WO3 framework. In the WO3 framework, W3+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.00 Å) and two longer (2.05 Å) W–O bond lengths. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two equivalent W3+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent W3+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two equivalent W3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlWO3 by Materials Project

WAlO3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. W3+ is bonded to five O2- atoms to form WO5 trigonal bipyramids that share corners with six equivalent AlO6 octahedra and corners with six equivalent WO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 66°. There are three shorter (1.94 Å) and two longer (2.18 Å) W–O bond lengths. Al3+ is bonded to six equivalent O2- atoms to form distorted AlO6 octahedra that share corners with six equivalent WO5 trigonal bipyramids and edges with six equivalent AlO6 octahedra. All Al–O bond lengths are 2.13 Å. 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 one W3+ and three equivalent Al3+ atoms to form a mixture of edge and corner-sharing OAl3W tetrahedra.

36 MATERIALS SCIENCE↗