KCeLaSnO6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Pnnn space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. Ce(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CeO6 octahedra that share corners with six equivalent Sn(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 17-29°. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted square co-planar geometry to four equivalent O(3) atoms. In the second La site, La(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form LaO12 cuboctahedra that share faces with four equivalent Ce(1)O6 octahedra and faces with four equivalent Sn(1)O6 octahedra. Sn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SnO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 17-29°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Ce(1), one La(2), and one Sn(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Ce(1), one La(2), and one Sn(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(2), one Ce(1), one La(1), one La(2), and one Sn(1) atom.
KCeLaSnO6 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Pnnn space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All K(1)-O(1) bond lengths are 3.17 Å. All K(1)-O(2) bond lengths are 2.68 Å. In the second K site, K(2) is bonded in a 4-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. All K(2)-O(1) bond lengths are 2.73 Å. All K(2)-O(3) bond lengths are 3.21 Å. Ce(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CeO6 octahedra that share corners with six equivalent Sn(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 17-29°. Both Ce(1)-O(1) bond lengths are 2.21 Å. Both Ce(1)-O(2) bond lengths are 2.19 Å. Both Ce(1)-O(3) bond lengths are 2.29 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted square co-planar geometry to four equivalent O(3) atoms. All La(1)-O(3) bond lengths are 2.47 Å. In the second La site, La(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form LaO12 cuboctahedra that share faces with four equivalent Ce(1)O6 octahedra and faces with four equivalent Sn(1)O6 octahedra. All La(2)-O(1) bond lengths are 2.85 Å. All La(2)-O(2) bond lengths are 2.97 Å. All La(2)-O(3) bond lengths are 2.87 Å. Sn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SnO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 17-29°. Both Sn(1)-O(1) bond lengths are 2.09 Å. Both Sn(1)-O(2) bond lengths are 2.06 Å. Both Sn(1)-O(3) bond lengths are 2.13 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Ce(1), one La(2), and one Sn(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Ce(1), one La(2), and one Sn(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one K(2), one Ce(1), one La(1), one La(2), and one Sn(1) atom.