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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
ZrW2O8 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Zr4+ is bonded to six O2- atoms to form ZrO6 octahedra that share corners with three equivalent WO4 tetrahedra and corners with three equivalent WO5 trigonal bipyramids. There are three shorter (2.07 Å) and three longer (2.15 Å) Zr–O bond lengths. There are two inequivalent W6+ sites. In the first W6+ site, W6+ is bonded to five O2- atoms to form distorted WO5 trigonal bipyramids that share corners with three equivalent ZrO6 octahedra and a cornercorner with one WO4 tetrahedra. The corner-sharing octahedral tilt angles are 24°. There are a spread of W–O bond distances ranging from 1.75–2.34 Å. In the second W6+ site, W6+ is bonded to four O2- atoms to form WO4 tetrahedra that share corners with three equivalent ZrO6 octahedra and a cornercorner with one WO5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 7°. There is one shorter (1.78 Å) and three longer (1.82 Å) W–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one W6+ atom. In the second O2- site, O2- is bonded in a distorted linear geometry to two W6+ atoms. In the third O2- site, O2- is bonded in a linear geometry to one Zr4+ and one W6+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Zr4+ and one W6+ atom.
Cs2Zr(WO4)3 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Cs1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cs–O bond distances ranging from 3.18–3.52 Å. Zr4+ is bonded to six O2- atoms to form ZrO6 octahedra that share corners with six WO6 octahedra. The corner-sharing octahedra tilt angles range from 39–40°. There are a spread of Zr–O bond distances ranging from 2.10–2.12 Å. There are two inequivalent W6+ sites. In the first W6+ site, W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent ZrO6 octahedra and corners with four WO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are a spread of W–O bond distances ranging from 1.91–1.97 Å. In the second W6+ site, W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent ZrO6 octahedra and corners with four equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 36–39°. There are a spread of W–O bond distances ranging from 1.92–1.97 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two equivalent W6+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Zr4+, and one W6+ atom. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+, one Zr4+, and one W6+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two W6+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+, one Zr4+, and one W6+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cs1+ and two W6+ atoms.