Y2ZrWO8 crystallizes in the tetragonal I-4 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Zr(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form distorted ZrO8 tetrahedra that share corners with four equivalent W(1)O4 tetrahedra. W(1) is bonded to four equivalent O(1) atoms to form WO4 tetrahedra that share corners with four equivalent Zr(1)O8 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Y(1), one Y(2), one Zr(1), and one W(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Y(1), one Y(2), and one Zr(1) atom.
Y2ZrWO8 crystallizes in the tetragonal I-4 space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. All Y(1)-O(1) bond lengths are 2.48 Å. All Y(1)-O(2) bond lengths are 2.31 Å. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All Y(2)-O(1) bond lengths are 2.42 Å. All Y(2)-O(2) bond lengths are 2.33 Å. Zr(1) is bonded to four equivalent O(1) and four equivalent O(2) atoms to form distorted ZrO8 tetrahedra that share corners with four equivalent W(1)O4 tetrahedra. All Zr(1)-O(1) bond lengths are 2.71 Å. All Zr(1)-O(2) bond lengths are 2.04 Å. W(1) is bonded to four equivalent O(1) atoms to form WO4 tetrahedra that share corners with four equivalent Zr(1)O8 tetrahedra. All W(1)-O(1) bond lengths are 1.85 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Y(1), one Y(2), one Zr(1), and one W(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Y(1), one Y(2), and one Zr(1) atom.