Ca2LaSbO6 crystallizes in the tetragonal P4/mnc space group. Ca(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. La(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form LaO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-38°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-38°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Ca(1), one La(1), and one Sb(1) atom. In the second O site, O(2) is bonded to two equivalent Ca(1), one La(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OCa2LaSb tetrahedra.
Ca2LaSbO6 crystallizes in the tetragonal P4/mnc space group. Ca(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. All Ca(1)-O(1) bond lengths are 2.96 Å. All Ca(1)-O(2) bond lengths are 2.55 Å. La(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form LaO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-38°. Both La(1)-O(1) bond lengths are 2.28 Å. All La(1)-O(2) bond lengths are 2.39 Å. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent La(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-38°. Both Sb(1)-O(1) bond lengths are 1.99 Å. All Sb(1)-O(2) bond lengths are 2.02 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent Ca(1), one La(1), and one Sb(1) atom. In the second O site, O(2) is bonded to two equivalent Ca(1), one La(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OCa2LaSb tetrahedra.