BaSrCe2O6 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded to four equivalent O(3) and eight equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with four equivalent Ba(1)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with eight equivalent Ce(1)O6 octahedra. Sr(1) is bonded to four equivalent O(2) and eight equivalent O(1) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent Ce(1)O6 octahedra. Ce(1) is bonded to one O(2), one O(3), and four equivalent O(1) atoms to form CeO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent Ba(1), two equivalent Sr(1), and two equivalent Ce(1) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to four equivalent Sr(1) and two equivalent Ce(1) atoms. In the third O site, O(3) is bonded in a distorted linear geometry to four equivalent Ba(1) and two equivalent Ce(1) atoms.
BaSrCe2O6 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded to four equivalent O(3) and eight equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with four equivalent Ba(1)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with eight equivalent Ce(1)O6 octahedra. All Ba(1)-O(3) bond lengths are 3.15 Å. All Ba(1)-O(1) bond lengths are 3.16 Å. Sr(1) is bonded to four equivalent O(2) and eight equivalent O(1) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent Ce(1)O6 octahedra. All Sr(1)-O(2) bond lengths are 3.15 Å. All Sr(1)-O(1) bond lengths are 3.14 Å. Ce(1) is bonded to one O(2), one O(3), and four equivalent O(1) atoms to form CeO6 octahedra that share corners with six equivalent Ce(1)O6 octahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. The Ce(1)-O(2) bond length is 2.22 Å. The Ce(1)-O(3) bond length is 2.24 Å. All Ce(1)-O(1) bond lengths are 2.23 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to two equivalent Ba(1), two equivalent Sr(1), and two equivalent Ce(1) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to four equivalent Sr(1) and two equivalent Ce(1) atoms. In the third O site, O(3) is bonded in a distorted linear geometry to four equivalent Ba(1) and two equivalent Ce(1) atoms.