Sr2YTaO6 crystallizes in the tetragonal I4/m space group. Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Y(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form YO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. Ta(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TaO6 octahedra that share corners with six equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Sr(1), one Y(1), and one Ta(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Y(1), and one Ta(1) atom.
Sr2YTaO6 crystallizes in the tetragonal I4/m space group. Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All Sr(1)-O(1) bond lengths are 2.90 Å. All Sr(1)-O(2) bond lengths are 2.61 Å. Y(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form YO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. Both Y(1)-O(1) bond lengths are 2.21 Å. All Y(1)-O(2) bond lengths are 2.23 Å. Ta(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form TaO6 octahedra that share corners with six equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. Both Ta(1)-O(1) bond lengths are 1.99 Å. All Ta(1)-O(2) bond lengths are 1.99 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Sr(1), one Y(1), and one Ta(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Y(1), and one Ta(1) atom.