Sr2LuTaO6 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Pnn2 space group. Sr(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with twelve equivalent Sr(1)O12 cuboctahedra, faces with six equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Lu(1)O6 octahedra, and faces with four equivalent Ta(1)O6 octahedra. Lu(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form LuO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 4-6°. Ta(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TaO6 octahedra that share corners with six equivalent Lu(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 4-6°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Sr(1), one Lu(1), and one Ta(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to four equivalent Sr(1), one Lu(1), and one Ta(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to four equivalent Sr(1), one Lu(1), and one Ta(1) atom.
Sr2LuTaO6 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Pnn2 space group. Sr(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with twelve equivalent Sr(1)O12 cuboctahedra, faces with six equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Lu(1)O6 octahedra, and faces with four equivalent Ta(1)O6 octahedra. There are a spread of Sr(1)-O(1) bond distances ranging from 2.79-3.11 Å. There are a spread of Sr(1)-O(2) bond distances ranging from 2.87-3.05 Å. There are a spread of Sr(1)-O(3) bond distances ranging from 2.86-3.10 Å. Lu(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form LuO6 octahedra that share corners with six equivalent Ta(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 4-6°. Both Lu(1)-O(1) bond lengths are 2.16 Å. Both Lu(1)-O(2) bond lengths are 2.16 Å. Both Lu(1)-O(3) bond lengths are 2.17 Å. Ta(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TaO6 octahedra that share corners with six equivalent Lu(1)O6 octahedra and faces with eight equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 4-6°. Both Ta(1)-O(1) bond lengths are 1.99 Å. Both Ta(1)-O(2) bond lengths are 1.99 Å. Both Ta(1)-O(3) bond lengths are 2.00 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Sr(1), one Lu(1), and one Ta(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to four equivalent Sr(1), one Lu(1), and one Ta(1) atom. In the third O site, O(3) is bonded in a distorted linear geometry to four equivalent Sr(1), one Lu(1), and one Ta(1) atom.