KSmLaSbO6 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(2) and four equivalent O(3) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. Sm(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SmO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 16-27°. 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(2) 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 Sm(1)O6 octahedra and faces with four equivalent Sb(1)O6 octahedra. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Sm(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 16-27°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(2), one Sm(1), one La(2), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), one Sm(1), one La(1), one La(2), and one Sb(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Sm(1), one La(2), and one Sb(1) atom.
KSmLaSbO6 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(2) and four equivalent O(3) atoms. All K(1)-O(2) bond lengths are 3.15 Å. All K(1)-O(3) bond lengths are 2.72 Å. In the second K site, K(2) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(3) atoms. All K(2)-O(1) bond lengths are 2.67 Å. All K(2)-O(3) bond lengths are 3.14 Å. Sm(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SmO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 16-27°. Both Sm(1)-O(1) bond lengths are 2.26 Å. Both Sm(1)-O(2) bond lengths are 2.31 Å. Both Sm(1)-O(3) bond lengths are 2.28 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(2) atoms. All La(1)-O(2) bond lengths are 2.50 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 Sm(1)O6 octahedra and faces with four equivalent Sb(1)O6 octahedra. All La(2)-O(1) bond lengths are 2.96 Å. All La(2)-O(2) bond lengths are 2.89 Å. All La(2)-O(3) bond lengths are 2.86 Å. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with six equivalent Sm(1)O6 octahedra and faces with two equivalent La(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 16-27°. Both Sb(1)-O(1) bond lengths are 1.98 Å. Both Sb(1)-O(2) bond lengths are 2.05 Å. Both Sb(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 3-coordinate geometry to one K(2), one Sm(1), one La(2), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one K(1), one Sm(1), one La(1), one La(2), and one Sb(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one K(2), one Sm(1), one La(2), and one Sb(1) atom.