KSrCeWO6 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), four equivalent O(2), and four equivalent O(3) atoms. In the second K site, K(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form distorted KO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ce(1)O6 octahedra, and faces with four equivalent W(1)O6 octahedra. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. In the second Sr site, Sr(2) 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 four equivalent K(2)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with four equivalent Ce(1)O6 octahedra, and faces with four equivalent W(1)O6 octahedra. 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 W(1)O6 octahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-20°. W(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form WO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-20°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one K(1), one K(2), one Sr(2), one Ce(1), and one W(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Ce(1), and one W(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Ce(1), and one W(1) atom.
KSrCeWO6 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), four equivalent O(2), and four equivalent O(3) atoms. All K(1)-O(1) bond lengths are 3.06 Å. All K(1)-O(2) bond lengths are 2.76 Å. All K(1)-O(3) bond lengths are 3.33 Å. In the second K site, K(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form distorted KO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ce(1)O6 octahedra, and faces with four equivalent W(1)O6 octahedra. All K(2)-O(1) bond lengths are 2.75 Å. All K(2)-O(2) bond lengths are 3.22 Å. All K(2)-O(3) bond lengths are 3.13 Å. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to four equivalent O(2) and four equivalent O(3) atoms. All Sr(1)-O(2) bond lengths are 3.00 Å. All Sr(1)-O(3) bond lengths are 2.65 Å. In the second Sr site, Sr(2) 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 four equivalent K(2)O12 cuboctahedra, faces with two equivalent K(2)O12 cuboctahedra, faces with four equivalent Ce(1)O6 octahedra, and faces with four equivalent W(1)O6 octahedra. All Sr(2)-O(1) bond lengths are 2.97 Å. All Sr(2)-O(2) bond lengths are 3.00 Å. All Sr(2)-O(3) bond lengths are 2.88 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 W(1)O6 octahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-20°. Both Ce(1)-O(1) bond lengths are 2.29 Å. Both Ce(1)-O(2) bond lengths are 2.21 Å. Both Ce(1)-O(3) bond lengths are 2.25 Å. W(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form WO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra, faces with two equivalent K(2)O12 cuboctahedra, and faces with two equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 12-20°. Both W(1)-O(1) bond lengths are 1.95 Å. Both W(1)-O(2) bond lengths are 2.05 Å. Both W(1)-O(3) bond lengths are 2.06 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one K(1), one K(2), one Sr(2), one Ce(1), and one W(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Ce(1), and one W(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to one K(1), one K(2), one Sr(1), one Sr(2), one Ce(1), and one W(1) atom.