SrLa2Ti3O9 is (Cubic) Perovskite-derived structured and crystallizes in the trigonal P-3m1 space group. Sr(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with six equivalent Sr(1)O12 cuboctahedra, corners with six equivalent La(1)O12 cuboctahedra, faces with six equivalent La(1)O12 cuboctahedra, faces with two equivalent Ti(1)O6 octahedra, and faces with six equivalent Ti(2)O6 octahedra. La(1) is bonded to three equivalent O(2) and nine equivalent O(1) atoms to form LaO12 cuboctahedra that share corners with three equivalent Sr(1)O12 cuboctahedra, corners with nine equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with three equivalent La(1)O12 cuboctahedra, faces with three equivalent Ti(1)O6 octahedra, and faces with five equivalent Ti(2)O6 octahedra. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to six equivalent O(1) atoms to form TiO6 octahedra that share corners with six equivalent Ti(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with six equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 2°. In the second Ti site, Ti(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form TiO6 octahedra that share corners with three equivalent Ti(1)O6 octahedra, corners with three equivalent Ti(2)O6 octahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with five equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), three equivalent La(1), one Ti(1), and one Ti(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent La(1), and two equivalent Ti(2) atoms.
SrLa2Ti3O9 is (Cubic) Perovskite-derived structured and crystallizes in the trigonal P-3m1 space group. Sr(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with six equivalent Sr(1)O12 cuboctahedra, corners with six equivalent La(1)O12 cuboctahedra, faces with six equivalent La(1)O12 cuboctahedra, faces with two equivalent Ti(1)O6 octahedra, and faces with six equivalent Ti(2)O6 octahedra. All Sr(1)-O(1) bond lengths are 2.81 Å. All Sr(1)-O(2) bond lengths are 2.79 Å. La(1) is bonded to three equivalent O(2) and nine equivalent O(1) atoms to form LaO12 cuboctahedra that share corners with three equivalent Sr(1)O12 cuboctahedra, corners with nine equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with three equivalent La(1)O12 cuboctahedra, faces with three equivalent Ti(1)O6 octahedra, and faces with five equivalent Ti(2)O6 octahedra. All La(1)-O(2) bond lengths are 2.78 Å. There are three shorter (2.78 Å) and six longer (2.79 Å) La(1)-O(1) bond lengths. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to six equivalent O(1) atoms to form TiO6 octahedra that share corners with six equivalent Ti(2)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with six equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 2°. All Ti(1)-O(1) bond lengths are 1.97 Å. In the second Ti site, Ti(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form TiO6 octahedra that share corners with three equivalent Ti(1)O6 octahedra, corners with three equivalent Ti(2)O6 octahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with five equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. All Ti(2)-O(1) bond lengths are 1.98 Å. All Ti(2)-O(2) bond lengths are 1.97 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), three equivalent La(1), one Ti(1), and one Ti(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent La(1), and two equivalent Ti(2) atoms.